When you're typing the greatest comeback of all time, but you start daydreaming about how awesome it's going to be and end up just typing some nonsense.
Dude. That was going to be the sickest burn ever until you dickbrained it.
A man who thinks with his penis instead of his brain. In other words, his actions aren't rational and decisions are totally driven by getting laid.
He has been paying his girlfriend's cable bill so he has an excuse to go over there and spend time with her in hopes of getting laid.. What a dickbrain.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.