Courtesy Lick 

Licking the opening to an orifice in order to provide lubrication to ease the pain of penetration. The licking is performed by the penetrating individual out of courtesy.

Can I at least get a courtesy lick before you fuck me?

Courtesy Lick by MaddyMatty May 22, 2011

Courtesy Lick 

The alternative to artificial lubricant (eg. KY). Performed when foreplay is bypassed to get into the "good stuff" without causing undo friction.

Please take me to a grease monkey, cuz I like to get lubed up before I get FUCKED! Huh! Some lube would be nice... or at least a Courtesy Lick

Courtesy Lick by Bdamn June 1, 2011

courtesy lick 

When one finds oneself in a situation "south of the border" with a lady....and the "situation" is not a place you care to be. In other words, things are bad (ie. smell, presence of discharge, discolouration, etc.) - very bad. In such a case a "courtesy" lick is given to the area in question followed by a similar lick of the thumb and subsequent manual stimulation of the clitoris (w/ said thumb).

I started to go down on this chick and she was super hot." "However, the state of her genital region required the use of a courtesy lick.

courtesy lick by Lyle B. Berguson September 6, 2010

courtesy lick 

Sexual favor, licking of the Anus.

After James had finished blowing Craig, Craig felt compelled to show his gratitude by giving James a courtesy lick.

courtesy lick by bubblisious July 31, 2007