Unscramble Mbuf

What is the meaning of word mbuf unscrambled?

What 4 letter words can be made from letters M B U F:

1. bumf - Definition of bumf

Make more words by adding or removing letters

How many 3 letter words can you make from letters M B U F?

1. bum - Definition of bum

2. fub - Definition of fub

Which 3 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter M and unscrambling buf
2) Removing the letter B and unscrambling muf
3) Removing the letter U and unscrambling mbf
4) Removing the letter F and unscrambling mbu

More anagrams containing the letters M B U F
mfbu mfub mufb bfum