Claptrap is a CL4P-TP general purpose robot manufactured by Hyperion. It has been programmed with an overenthusiastic personality. Claptrap received mostly negative reviews due to its perceived "annoyance" It brags frequently, yet also expresses severe loneliness and cowardice.
See also: Borderlands (film), Jack Black filmography, Conservapedia, Stephen Gyllenhaal, Borderlands 2, Borderlands: The Pre-Sequel.