garbage duck

Garbage duck is a sad attempt at insulting a person. Calling someone a garbage duck is usually done by elderly people who have severe dementia and have no idea where they are at. Garbage duck may be followed up by asshole, punk, or a threat to kick one's ass.

Don't come near me, you big garbage duck! Yeah you're just a big dumb garbage duck...you punk! Come over here and I'll kick your ass!