n. (pl. -ies)
1 a light, horse-drawn, esp. two-wheeled, vehicle for one or two people.
2 a small, sturdy, esp. open, motor vehicle (beach buggy; dune buggy).
3 US a pram.
Etymology: 18th c.: orig. unkn.
2.
adj. (buggier, buggiest) infested with bugs.
Useful english dictionary. 2012.