"dumbbell" in the noun sense
1. dumbbell
an exercising weight two spheres connected by a short bar that serves as a handle
2. dumbbell, dummy, dope, boob, booby, pinhead
an ignorant or foolish person
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License