Performing the landing strip is a sex move in which the
guy rubs his
dick between a girls armpit (similar to the act of titjob or thighjob) and before the
guy cums, the girl opens her armpit, allowing the guy to "land the plane" on the Landing Strip
Guy #1: Hey dude, have you and your girl tried anything new recently?
Guy #2: Yeah she let me perform the Landing
Strip