2. Noun. (colloquial) A first year student, at certain universities. ¹
3. Verb. (transitive slang) To initiate academic freshmen, notably in a testing way. ¹
4. Verb. (transitive slang) To damage through incompetence. ¹
¹ Source: wiktionary.com
Definition of Frosh
1. a freshman [n FROSH] - See also: freshman