When a homosexual is doing his lover and then crams one or both of his testicles in as well. This is known as a Briggsy Bonus. Named after its originator who has been known to pleasure trannies in this way.
Trannie 1: I never knew what "stretched" meant until last night.
Trannie 2: So you got a Briggsy Bonus then?
Trannie 1: Yeah, by Briggsy himself.