A bald, floppy, semi-flaccid penis. Usually the post nut, semi-chub.
She kept on wanking my bald dog after I blew nut.

I thought I was home alone but my mom walked in on me sporting a bald dog.

My uncle asked me if I had ever seen a bald dog.
by Eaton Holgoode October 15, 2018
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A really tiny dog who is losing his hair, he has a lot of anger about it. Never pet a nico when he is sleeping
“Wow nico the bald dog is the worst , even Mr Nubs is better and he barely has a tail
by wowowowdefinitions May 6, 2022
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