In Britain, a guy is a model of a man that is made from old clothes filled with straw or paper. Guys are burned on bonfires as part of the celebrations for Guy Fawkes Night.
"a nice guy""the guy's only doing it for some doll"
2. a rope or cable that is used to brace something (especially a tent)
Verb
1. subject to laughter or ridicule;
"The satirists ridiculed the plans for a new opera house""The students poked fun at the inexperienced teacher""His former students roasted the professor at his 60th birthday"
2. steady or support with with a guy wire or cable;
"The Italians guyed the Tower of Pisa to prevent it from collapsing"