A preferably pre-designated night out every week or more where a male needs to have a break from the insanely annoying bitchy and irrational female sex. Women do not need a girls night out, however, because they are insane and their life revolves completely around men
God my girlfriend is a pain in the ass, I really need a guys night out to degrade women and have discussions that consist of something other than clothes, accesories, and why my girlfirend hates her best friend.
When it's becomes late and you suddenly feel the we've fir some action, or feel like you're horny. This happens late because at night you can talk with people on a deep level.