What is a third leg?

[Imheretoask]

So I was listening to a song and one of the lyrics is they call me black beard back in the hood I guess I look like a pirate when my third leg's got wood

[Anonymous]

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[aoifeislovable]

Hahah😂 if you can't figure it out yourself you're too young to know

[Suiyuan]

In the Chinese language, a third leg means a busybody :- )

[blabli]

its a big dick

[Anonymous]

Yo' dick brother