When you cannot get out of the shower fast enough to shit so you accidentally drop loaf in the tub. You must now mash it down the drain with your big toe.
"I had no time to jump out of the shower to crap out last night's tacos so I had to mash the drain cuz I shit the tub ."
A dance that is a combination between twerking and daggering that is primarily meant to lower the IQ of both the dancers and to let other people feel better about themselves.
Commonly resulting from a sudden increase in Cocaine fuelled meditation, KMDS can result in late night googling of one's self, foaming at the mouth, erectile dysfunction, uncontrollable crying, lazy eye and hair loss.
"He's 50 years old and been screaming at his computer screen like a baby all night, if he turns out to have Kicking Mustang Derangement Syndrome then at least he won't reproduce."
Refers to Drain Gang, a music collective from Stockholm. Members include Bladee, Thaiboy Digital, Ecco2K, Whitearmour and Yung Sherman. Drain only refers to music and art created by Drain Gang, and not the wider underground scene.