Rule according to which a man shouldn't get involved with a woman whom his friend has previously shown interest in.

simple past tense and past participle of reply guy

present participle of reply guy

plural of pizza guy

plural of tough guy

plural of go-to guy

plural of little guy

Archaic form of Guy Fawkes.

(Britain) The revelry on Guy Fawkes Day (the 5th of November) in commemoration of the failure of the Gunpowder Plot of 1605, traditionally including the burning of effigies of the pope, Guy Fawkes, and/or the Devil.

(informal) A small, agile group of startup innovators with a big idea, passion, and modest resources.