The act in which two straight males cross streams into the same urinal while at any establishment that serves alcoholic beverages. Both males may or may not be under the influence. Though neither male derives any sexual pleasure from this, both penises must be in plane sight to perform the act correctly.
Wtf bro....we totally pulled an Uncle Sammy last night at that Roosters.
by Potata head July 15, 2017
Get the Uncle Sammy mug.