A penis.
A quirky, silly and/or stupid, socially inept person, or one who is out of touch with contemporary trends. Often confused with nerd and geek, but does not imply the same level of intelligence.
The nutlike tuber of such a plant, especially peanuts.
A climbing vine, Apios americana, of eastern North America, having fragrant brownish flowers and small edible tubers.
A plant which bears its nutlike seeds underground, such as a peanut (Arachis hypogaea) or a Bambara groundnut (Vigna subterranea).
Any similar plant having underground tubers.