trademan's entrance
Typically refers to the backdoor and is usually used as slang for anal sex.
So I tell the swamp donkey to sock it before I give her a trunky in the trademan's entrance and have her lick me yardballs.
Use the trademan's entrance
To have sexual intercourse in the anus. Derived from the same source as backdoor. Utilises the common practice of tradespeople using the backdoor to a house so as not to dirty the front entrance or as to be not seen.
I do believe that he is gay and would often use the trademan's entrance.