Coolin', or "coolin' out", "straight coolin'" and other vernacular is the act of congregating in a less than reputable locale with the presence of alcohol. It requires at least one person (see illin') to initiate said coolin' and another to acknowledge the invitation to cool out.
"Parking lot coolin"
"Straight up coolin"
Taking it easy
Me and tweezy where coolin
another word for chillin.
in the house doing you.
john: hey wassup what you been up to?
Michael: nothing just been coolin with the homies
chilling on your street corner with some bud and your favourite girl
'ayo dawg, me and felicia was coolin it on 25th and 7th when these wack niggas rolled up and started talking smack'