What does blundonian blumpkin mean?

blundonian blumpkin meaning in Urban Dictionary

A gay sex work performed in a public restroom lacking partitions between stalls, for which two seated participants just take transforms bending over laterally to execute fellatio on a single another whilst simultaneously defecating within their particular receptacles. Usually maybe not performed sequentially ("I'll do you unless you strike out both your loads then chances are you do me personally, ok?") but instead in rapid alternating bursts of some seconds duration A-does-B after that B-does-A. A professionally-executed blundonian blumpkin maneuver results in a virtually seamless and volcanic four-way surge and is a true question to behold.