Definition:
Someone who orders GrubHub often, and goes on and on about how great it is. Typically a hipster, thinks he was using GrubHub "before it was trendy."
"Hey man, have you tried Grubhub yet? It's so great! I use it 24/7!" That's a Grubhead.
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.