the practise of metaphorically sowing one's seed and subsequently immediately departing from the scene as there is no further interest or motivation.
or...
the state of mind that you might adopt when looking at somebody when the attraction is preventing you from thinking about anything other than monking and bailing...
Bernice was so fat and ugly that Steve just monked and bailed
or....
He took her to a fancy restaurant and she was laughing and telling him about her passions and hobbies...He acted interested and mirrored her behaviour, but all he was thinking was "monk and bail, monk and bail, monk and bail"
using texting to back out or ditch on plans, dates and especially relationships
(you guys just sent me email bail in my word of the day, I can't believe THIS on isn't already in your dictionary, since it's the choice style nowadays to bail)
Once again, he text bailed on our plans for tonight. He was evenclassy enough to do it the same day and not give me time to make other plans.
1. when a friend leaves the party earlier than anticipated, unannounced like a shadow in the night, due to overconsumption of spirits, or in the pursuit of booty (usually your sister).
"hey wheres Jeff?... i dunno man have you seen my sister?... awwww manwtf!? Sketch bailer!"
The act of meeting a female stranger in a public setting, usually where alcohol is served, with the intention of hooking up later on to have sexual intercourse, and once successful, immediately fleeing the female's abode after she has fallen asleep.
Dude 1: hey man, let's go to the bar and find some nasty whores. Dude 2: alright, you thinkin' about a pork n' bail? Dude 1: yea, i'm not looking for anything long-term. Dude 2: yep.