When one sticks ones index finger up ones ARSE hole and then proceeds to insert it into anothers mouth.
''Jack gave an ickylicky to Helen and she said it tasted creamy!''
by Jack Smittenburger-Von Licktenschtein January 24, 2008
The act of taking one's tongue and licking another individual's icky anus. This sensual act may be completed voluntarily or involuntarily depending on the situation.
Of all the icky-licky 's I've had over the years, the girl from last night had the longest tongue. Br00tal.
by IttyBittyIckyLicky November 21, 2011