From fabulous, by shortening
fab (comparative fabber, superlative fabbest)
- (informal) fabulous (great or spectacular).
From fabricate and its derived terms, by shortening
fab (plural fabs)
- A manufacturing plant which fabricates items, particularly silicon chips.
fab (third-person singular simple present fabs, present participle fabbing, simple past and past participle fabbed)
- To fabricate, especially in the context of fabbers