Unscramble Upsisets

What is the meaning of word upsisets unscrambled?

What 8 letter words can be made from letters U P S I S E T S:

1. pussiest - Definition of pussiest

Make more words by adding or removing letters

How many 7 letter words can you make from letters U P S I S E T S?

1. pussies - Definition of pussies

2. situses - Definition of situses

3. tissues - Definition of tissues

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling psisets
2) Removing the letter P and unscrambling usisets
3) Removing the letter S and unscrambling upisets
4) Removing the letter I and unscrambling upssets
5) Removing the letter S and unscrambling upsiets
6) Removing the letter E and unscrambling upsists
7) Removing the letter T and unscrambling upsises
8) Removing the letter S and unscrambling upsiset

More anagrams containing the letters U P S I S E T S
upsisset upsisste upisesst sptsuesi