"buggy" in the noun sense
1. buggy, roadster
a small lightweight carriage drawn by a single horse
"buggy" in the adjective sense
1. balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky
informal or slang terms for mentally irregular
"it used to drive my husband balmy"
2. buggy
infested with bugs
Source: WordNet® (An amazing lexical database of English)
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