When you're in the position behind a girl with an amazing ass.
Guy 1 on cellphone- "Dude, this is a great assition."
"I wish I was there man." -Guy 2 on cellphone
by Dr. Ass September 28, 2013
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assitional: (as • si′• tion • alˊ) Contemporary Am. Eng.; adj.
1. to change seating placement or sitting position; 2. to adjust a seat so one may sit one’s ass down properly
1. Examples: She made a small assitional movement to better conceal her tattoo from public view.; His bum felt much more comfortable after his assitional maneuver.; 2. Example: He gave the chair an assitional turn so his fat buttocks could fit in it more easily.
by B'Doggy-O March 28, 2014
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