dill·weed 
(dĭlwēd′)
(dĭlwēd′)n.
Vulgar Slang
Vulgar Slang
An inept, foolish, or contemptible person.
[Probably alteration (influenced by DILL WEED) of DILDO or akin to earlier slang dill, dill pickle, fool, contemptible person (probably originally a euphemism for the penis).]