When a woman unexpectedly inserts a finger two knuckles deep into a man's ass during foreplay.
Lisa wanted to surprise John so she gave him an aciding while she blew him.
by XYK October 04, 2012
1 more definition
aciding is when you trip out and you like see shit all crazy like =D
Look at the flooooooor!!!!!! It's all aciding and whatnot
by Gabe and Natalie =D December 04, 2006