Australian Catapult
When mdma in pill form is placed around halfway down the tip of the penis, after which, oral sex is performed on the male, so that as he ejaculates the mdma into his partner's mouth and they trip balls.
Man 1: Did you know Australia has the highest use of mdma per capita?
Man 2: Yeah it also has the highest use of Australian Catapults per capita.

Woman 1: Ooo did you and Darren get naughty last night?
Woman 2: Sure did. Gave him the old Australian Catapult.