- Ant: Often used in phrases like “busy as an ant” to describe a hardworking or industrious person, though less common as a direct insult.
- Beetle: Sometimes used informally, similar to “bug,” for an odd or eccentric person.
- Bookworm: Someone who loves to read and studies a lot.
- Bug: Annoying person; someone who irritates others.
- Bumblebee: Rarely used, but in some contexts implies someone who bumbles through tasks energetically or clumsily — energetic but chaotic.
- Caterpillar: Occasionally used metaphorically for someone going through a slow transformation, or as a soft, harmless person (esp. in contrast to “butterfly”).
- Cockroach: Despicable or unwanted person; someone seen as dirty or hard to get rid of.
- Creep: Unsettling or predatory person; derived from “creepy-crawly.”
- Cricket: In some slang, can refer to someone who’s always chirping (talkative), or sometimes a term of endearment — not common, but found in certain dialects.
- Drone: Boring, mindless person; someone who lacks individuality or initiative.
- Earwig: Archaic/rare insult implying someone who whispers poison into others’ ears — a schemer or gossip.
- Flea: Someone annoying and hard to shake off; also implies insignificance and irritation. Used in phrases like “like a flea on a dog.”
- Fly: Can describe someone pesky, nosy, or overly persistent — “a fly on the wall” (observer), or “shoo, fly” (annoying person).
- Gnat: Persistently annoying but insignificant person.
- Grub (as in “grubby”): While “grub” is a larval insect, “grubby” describes someone dirty, unkempt, or unpleasant, linking the insect’s appearance to a human characteristic.
- Hornet: Fierce, aggressive person — often used when someone lashes out suddenly or attacks as part of a group (“stirring up a hornet’s nest”).
- Ladybug (or Ladybird): Sometimes used as a term of endearment for a small, sweet, or delicate person, particularly a child.
- Larva: Occasionally used (online/slang) to mock someone perceived as immature, unformed, or helpless.
- Leech: Exploitative person who clings to others for personal gain.
- Locust: Destructive, greedy person or group (often used metaphorically for corporate raiders, tourists, etc. — similar to “sprinkhaan”).
- Louse: Old-fashioned insult for a sneaky, low-down person.
- Maggot: Harsh insult suggesting weakness, filth, or worthlessness.
- Mayfly: Refers to someone whose presence or significance is very short-lived. Often poetic or gently critical.
- Moth: Besides the insect, can sometimes be used to describe someone drawn to something destructive or someone frail and delicate.
- Nitpicker: Person who focuses obsessively on trivial details.
- Parasite: Someone who lives off others without giving anything in return.
- Pupa: Rare and metaphorical, but used for someone in transition or “not quite there yet” — still developing, often socially or emotionally.
- Scorpion: A vengeful, dangerous, or treacherous person.
- Spider: Can describe a manipulative or cunning person, someone who “spins webs” of deceit.
- Termite: Someone who slowly but surely undermines or destroys something from within.
- Tick: Clingy, draining person who attaches to others for personal benefit.
- Wasp: Acronym (White Anglo-Saxon Protestant); can be used critically for someone seen as uptight or privileged.
- Worm: Cowardly or spineless person; implies weakness and lack of dignity.
- Wormtongue: Refers to someone who is deceitful or speaks with a malicious intent.