Green’s Dictionary of Slang

bogus adj.

also bogey
[bogus n.]
[mid-19C+]

1. (also bogy) fake, spurious.

2. a general term of disapproval, unpleasant, undesirable, untrustworthy, unfair.

3. (US campus) great, excellent.

4. (US campus) pretentious, pointless, stupid.