A portmanteau of "cocks" and "proximity," cockximity is the distance between two men and their respective cocks while standing at urinals in a public bathroom.
Toby: Woah, dude, watch your cockximity!
Bryce: I like dudes.
Derived from the combining of English noun cock and the verb to facilitate: the act of helping a friend engage in debauchery or any form or promiscuity with somebody else.