Term used to define where most guys' heads are about 99.9% of the time.
Dude 1: "Man, I just can't stop thinking about that chick..."
Dude 2: "Just get your head out the pussy clouds man, and just relex"
Dude 1: "What?"
Dude 2: "It's relax with some sex! It's called relex!"
Dude 1: "Ok, so get my head out of the pussy clouds by having sex? Alright... I'm just going to walk over this way now..."
When all thought is clouded by the possibility of that next pussy. When you start being clumsy and start doing dumb shit because you were thinking about that girl you wanna fuck.
"Jon you just ran that red light!!!"
-"what?...damn. sorry, Im just a bit pussyclouded"