A dance move; when two people's legs, normally a
girl and a guy, intertwine in a "sandwich" fashion. This is when the two are facing each other, and the legs slip into this position:
girl's left leg, guy's right leg,
girl's right leg, guy's left leg; vice versa.
Person 1: Yeah I was getting pretty
comfy between his legs on the dancefloor before we hooked up.
Person 2: So you guys did the
leg-wich?
Person 1: Totally. Works every
time.