look up any word, like full-donald:
 
1.
To start drinking or A cup filled with booze.
"Get over here so we can get our Drink on"
or "Put down my Drink on and get your own"
by Angelique Pruitt August 19, 2008
 
2.
When you've had a couple of drinks and get in the mindset to throw as many drinks down your neck as humanly possible, then inevitably do something stupid like beat up a pregnant woman or crap your pants.
"You better go and hide all the sharp objects, Lamberts got a massive Drink-On"

"Did you hear about the Drink-On Brady got last night? He drank a pint of vodka and then smacked Susan in the teeth"
by Witnica September 03, 2008