A person who licks, tickles, or otherwise plays with another person's grundel

Grundel is another word for chad: the region between the balls and the arse-hole; can be an erogenous zone for some.

Girl: I was fingering that part between his balls and his arse and there was shit there.
Everyone listening remained silent but later laughed among themselves:
'Eww! He had a shitty chad.'

When you measure your dick, you don't start at the arse-hole and include the chad; you risk getting shit on your measuring tape.

An undefined very large amount of something, often used in the computer industry.

someone who enjoys sniffing, licking, or biting a grundle patch, especially a sweaty one.

that little flap of skin between your cock and your ass that has too much hair and itches like fuck

The space of epidermis constituting the area betwixt the anal opening and the scrotum of a male, although a female also has a significantly smaller area of equal definition(substituting vaginal crevice instead of scrotum, of course). See also The New Jersey.

The Harris-Millis cafeteria at the University of Vermont.