trike rider

1. a person with Down Syndrome
2. any mentally retarded person

A reference to the fact that people with Down Syndrome have three copies of the 21st chromosome (hence the other name of the syndrome, trisomy 21), while normal people only have two. Therefore, while most people ride "bicycles" down "21st street", people with Down Syndrome ride "tricycles." They are trike riders.

Check out that kid over there. He's definitely a trike rider.

by vtfan77 August 26, 2005

polish trikeride

The act of 69ing while the man is taking a shit.

69/Blumpkin combination.

Beaverson took that chick to the bathroom and went on a polish trikeride. Then later he ditched her in a stairwell.

by Polish Trikerider April 7, 2010

ride the tribe

A girl from another school, getting with a lancer. (specifically from the student section)

girl 1: “i want to ride the tribe tonight”
girl 2: “same but how do we get into a barn party?”

by yuh12326757181 December 29, 2021