by YA RLY! December 28, 2005

A surfers tank top worn by many frat guys when it starts to get warm outside, no matter how non attractive they look in it. Man tank motto: Sun's out, guns out!
by littlealiciauh August 11, 2012

by CountRex March 28, 2010

Young Woman No. 1: "Check out that guy. He could bone me down anytime, anywhere."
Young Woman No. 2: "I know. It's like he's totally a Frank In A Tank or something."
Young Woman No. 2: "I know. It's like he's totally a Frank In A Tank or something."
by Frank In A Tank Lover 99 August 25, 2011

by Agg August 10, 2003

by matthewmatthew123 January 23, 2008

when a person drinks a large quantity of alcohol and their alter ego emerges- the more drastic difference between the person and the alter ego, the more "frank the tank" they are- inspired by the movie old school's character frank the tank as portrayed by Will Ferrel
by anonymous777 September 2, 2005
