monk and bail 

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"

monk and bail by LOTF2013 September 13, 2011