Truck-Stop Guzzler
A female that participates in prostitution inside the men's bathroom, free of charge.
That lady looks like a hardcore Truck-Stop Guzzler.
Truck Stop Guzzler
A person of a certain gender using the opposite sex restroom.
'Bro, I was going for a pee, and this girl came out of the men's bathroom, such a Truck Stop Guzzler! '