the thumb dance is a particularly enjoyable sexual maneuver. in order to perform the thumb dance a man must be fuckin a bitch doggy style, the man will then stick his thumb in his mouth for lubrication, then firmly insert his moist thumb into the womans anus and ride that bitch like a bucking bronco.
Brady: dude, you show that bitch the thumb dance last night?
Dane: totally dude. when i was doing that bitch doggy style i was all "yo bitch, you wanna dance?" and before she could answer i had my thumb all up in that shit. she started screaming at me and shit but obviously she really liked it.
Same as the Republican Dance Style where Donald Trump and supporters start doing the Trump Dance where they fist pump using an action called Air Jerking.
See how he does the Trump Dance on those election rallies and maybe he could gopull someone else after he concedes defeat.