look up any word, like ratchet:
 
1.
Styrofoam cup filled with purple drank.
Keep that crys, pass me a muddy cup!
by Bryan Donton July 16, 2009
 
2.
Bog, Shitter, Toilet
Nick needed to spend most of the morning on the Muddy Cup after that Jalfrezi attacked him at 5:30am
by Streaker30 June 01, 2009