1.To
masturbate(if you are a guy) and/or to just sit down and relax with your penis portruding out of your pants.
2.To go out with someone and/or to go somewhere with the intention of having
sex.
Syn: hang out with your wang out
1. I was so bored and tired when I got home from work, so I got out my girly magazines and proceeded to cool out with my tool out.
2a. After scoring this
one hot chick at the party, I went to go cool out with my tool out with her.
2b. Since I am so bored and horny today, I'm going to go to the
local brothel and cool out with my tool out.