寝癖 ne guse morning hair that is, hair that sticks up due to sleeping
寝 ne sleep 癖 kuse habit, fault [In our example there is a phonetic change to guse]
SUGGESTED USAGE:
しまった。また寝癖! shimatta. mata neguse! Oh no. Morning hair again!
ABOUT SUGGESTED USAGE:
しまった shimatta - darn! また mata - again