The act of placing one's posterior against that of another and farting, thus safely depositing the fart in the recipient for later retrieval.
Deav asked his brother at the Indians game, "If you fart into someone's butt, what would you call that?" A guy in the row behind responded, "Well I'd call it a safety deposit box."
Deaver: "I gotta fart!"
Neil: "Quick, stand up and use the safety deposit box!"
Deaver: "I gotta fart!"
Neil: "Quick, stand up and use the safety deposit box!"
by Deav, Belkins & Associates January 24, 2012
by Fernando Fernandez April 11, 2006
by Fernando September 17, 2004
When you fart in someone's drawer, close it, and then sneakliy tell him/her that you left a deposit and that he/she should pick it up postehaste.
Yo, G, I left you something in the safety deposit box, you should go check it out. I think you'll find it...enchanting. `
by MercuryRetro November 25, 2011
by Andy Dufraine April 23, 2011