look up any word, like blumpkin:
 
1.
When your friend gets a blowjob from some girl and thinks that he's in love
He thought they'd be together forever after that party, but it turned out to be a short-lived blowmance.
by ErikTheViking November 16, 2010
 
2.
1. When she says you can't have any unless you give her some romance first, at which point you pull out your beef bazooka and ram it into her corkhole.

2. Pre-emptive, take charge fellatio.
Not wanting to be touched, she said she had a headache. That's when he grabbed the back of her head and applied some blowmance.
by Wyatt Junker October 07, 2009
 
3.
The long term relationship between a person and cocaine that is very hard to break
The people on Celebrity Rehab almost seem hopeless. They have had such long term blowmances.
by Gnezz10 March 30, 2010
 
4.
Like a bromance, except in this relationship, one or both of the members are participating in oral sex.
Guy 1: John and I are really good friends. I spent last weekend at his house, it was awesome.
Guy 2: Dude, you guys totally have a blowmance.
by eatyourface97 October 13, 2009