Lyric discussion by zyzzyva 

Cover art for Happy Hour lyrics by Housemartins, The

djchapsticks hit it, but on top of that it's about being out with guys who are "on the prowl," who feel they have to get laid or else the night is wasted, and it doesn't matter who she is because you'll never see her again anyway.

It's laid out pretty clear in the last two verses.