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.
by Lyle B. Berguson September 05, 2010
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
by goldengirlsblows May 08, 2011