means you was relaxin
or havin a good time
and something happened or somebody did something to ruin it for you. i heard the term used once and the phrase perfectly described the situation for which it was used.
I bumped into my ex at this party last nite and she was bout to let me smash in the bathroom for ol' times sake, but my ride to the party was ready to leave so she gave me a brain check and told me 'maybe next time'. when we got to the car i told him that he sure know how to put somebody's chill on froze