abend vs biff

abend

• To terminate abnormally. 

• The abnormal termination of a program. 

• Termination of a process prior to completion. 

biff

• 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. 

• A sudden, sharp blow or punch. 

• A wipeout.