along with sexual progression euphemisms associated with baseball (first base: making out, second base: hand job, etc.), bull pen refers to a one night stand where one's perception is sub-standard, either due to intoxication, THC, or overt horniness, and the subject has sex with a very very unattractive person.
by Ian Wetzel September 18, 2004
Get the bull pen mug.Guy1: You know Justin Bieber?
Guy2: Yeah, what about him?
Guy1: He won the Artist of the Year award the other day.
Guy2: What?! That's such bull-to-the-junkie.
Guy2: Yeah, what about him?
Guy1: He won the Artist of the Year award the other day.
Guy2: What?! That's such bull-to-the-junkie.
by MrCybrody January 12, 2011
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