Ladies: You sick bastard!
Guy: i meant uh three way telephone call. what 'chew trippin foo'
Generally involving two males and one female. Mostly one of the males will insert his penis into the females mouth whilst the second male inserts his penis into her vagina or anus.
Person 2: Is that so?
Person 1: Oh yeah, true story
Person 2: How was it?
Person 1: Boy, let me tell you, that Debbie sure can stop!
Person 2: You mean go...right?