The larva of a botfly, which infests the skin of various mammals, producing warbles, or the nasal passage of sheep, or the stomach of horses.

(science fiction, informal) A physical robot.

(computing) A piece of software designed to perform a minor but repetitive task automatically or on command, especially when operating with the appearance of a (human) user profile or account.

(video games) A computer-controlled character in a video game, especially a multiplayer one.

(video games, slang, derogatory) A supremely unskilled player.

(Internet slang, figurative) A person with no ability to think for themselves.

(Britain, slang) To bugger.

(Australia, informal) To ask for and be given something with the direct intention of exploiting the thing’s usefulness, almost exclusively with cigarettes.

(video games) To use a bot, or automated program.