ˈnēd( ə )lə(r) noun
( -s )
Etymology: in sense 1, from needle (I) + -er; in other senses from needle (II) + -er
1. : one that makes, uses, or deals in needles
2. Britain : one that sews up packages
3. : one that goads or prods ; especially : one that indulges in sharp and often captious criticism of others
the moderator was an able discussion leader rather than just a plain needler — John Withall