bum rush

adrenaline rush

An event or activity which causes such a state.

bum rap

An undeservedly unfavorable portrayal or reputation.

bum steer

Bad advice or information, regardless of intention.

bum's rush

The forcible ejection of someone, such as a bum or a hobo, from an establishment.

corporate welfare bum

A business corporation or business executive receiving significant financial assistance from government sources.

rush hour

The times of the day when traffic jams are commonplace, due mainly to people commuting to or from work.

rush in

To act quickly and without due thought