biff vs bunch of fives

biff

• A sudden, sharp blow or punch. 

• A wipeout. 

• To discard; to throw out; to throw away. 

• To punch or hit. 

• To wipe out; to faceplant; to fall. 

• The sound of a person being punched or hit. 

bunch of fives

• a punch (blow with a fist) 

• a fist