Pulling a Brian occurs when a male seems very interested in a girl, pursues her for a decent amount of time then randomly decides that the girl is no longer worth it. The male then leaves with the excuses of "I am not ready" or "I haven't gotten over my past girlfriend." It usually occurs a month into dating.
No I am done with him, he started pulling a Brian.
by misspissedoff17 August 09, 2011
When a full-grown individual shits his or her pants.
"Ah man, I thought I was just going to let out a juicy fart, but I ended up pulling a Brian."
by Lizardotthewicked July 08, 2009
missing in action (MIA) for hours or days at a time
not answering calls and or falling asleep when you have made plans, thats pulling a brian
by djsfx November 03, 2012