Probably one of the best tasting drinks ever, originating at lehigh university in january of 2008 at a LUWB pregame meal at Rathbone Dining Hall. it is a mixture of skim milk and diet coke. preferably an approximate 6.4 to 3.6 skim milk to diet coke ratio.
"Ayo, pass me a glass of that cocomil.. i'm in the mood for that good shit."
"Truth, i can't believe you keep drinkin that cocomil, what the hell is wrong with you?"