Griss Lock 

To 'Griss Lock' means to have forcible or unconsented sex with any animal in a manner similar to the '69' postioning.

To try and attempt the above.

Can also be hyphenated i.e Griss-Lock

Did you hear about Farmer Joe? He fucking griss locked his cows!

I bet Tim griss locks his cat!

Griss Lock by Willba-Beast May 21, 2008