look up any word, like yeet:
 
1.
To drink heavily to the point of getting zonked out of your mind.
Last night I tanked up so much, that I passed out and dreamed that I was swimming in a sea of beer.
by Mark H August 17, 2004
 
2.
To fill up your car with gas
I gotta stop at a Gas station to tank up
by Tank up November 22, 2010