The act of taking a Nintendo Wii-mote and shoving it up your friends asshole, then lifting them up and using them as a WIi-mote.
"Dude, this games way too hard. Let me do the Wii Backdoor Swing to make this game a little harder."
by SkibidiSigma87 February 20, 2025
Get the Wii Backdoor Swingmug.