A person or thing that irritates or instigates.
Synonym of gadabout (“a person who restlessly moves from place to place, seeking amusement or the companionship of others”)
Any dipterous (“two-winged”) insect or fly of the family Oestridae (commonly known as a botfly) or Tabanidae (horsefly), noted for irritating animals by buzzing about them, and biting them to suck their blood; a gadbee.
A person who takes without giving back; a bloodsucker.
A person who upsets the status quo by posing novel or upsetting questions, or attempts to stimulate innovation by being an irritant.
A contemptible person.
A white-bodied, wood-consuming insect of the infraorder Isoptera, in the order Blattodea.
Of a chimpanzee: to catch termites by inserting a stick or vine into their nest and waiting for them to climb up it.