Slubered or Slubbered: How To spell?
The word Slubered is misspelled against Slubbered, which is past tense of "Slubber"
Slubbered has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Slu & ered which should not be misspelled with single 'B'
Wrong Spelling:  Slu-b-ered  Correct Spelling:  Slu-bb-ered 
Check more misspelled words of Slubbered to spell it correct.