What is 145'er?
The girl in the corner, most likely to be left at or near the closing of the bar since all the hot birdies were picked up.
Typically, a grenade which the hot friend has left w/o her and the dude's wingman bailed rather than face the humility...usually picked off by a desperate guy or a bouncer.
See that girl walkin in...total 145'er! HEY WINGMAN !?!