biff

Short definition from Wiktionary

Noun

1. 1
   A sudden, sharp blow or punch.
2. 2
   A wipeout.

Verb

1. 1
   To punch or hit.
2. 2
   To discard; to throw out; to throw away.
3. 3
   To wipe out; to faceplant; to fall.
4. 4
   To mess up.
5. 5
   To move quickly.

Interjection

1. 1
   The sound of a person being punched or hit.

Proper noun

1. 1
   Initialism of Busan International Film Festival.
2. 2
   Initialism of Bangsamoro Islamic Freedom Fighters.