Definitions by ThuggyC-Reddog

Castonguay 

A castonguay is a girl that can not get you off sexually.

I was with this castonguay last night and she couldn't get me off so i ended up jacking myself off.

Na man I can't get with her, I herd she is a castonguay.

Castonguay by ThuggyC-Reddog April 17, 2011