[txhurl]

What is a gooch

[shibumi]

Better question - What is a “Grundle?”

The medical definition -

http://medical-dictionary.thefreedictionary.com/Grundle

The “Urban” definition -

http://www.urbandictionary.com/define.php?term=grundle

Everybody’s got one.
Generally polite people just don’t mention it, much less use it as a nickname.