English version

muss

From Longman Dictionary of Contemporary Englishmussmuss1 /mʌs/ (also muss up) verb [transitive] informal especially American English  UNTIDYto make something untidy, especially someone’s hair Briscoe reached down and mussed the boy’s hair.→ See Verb table
Examples from the Corpus
mussHe never got his hair mussed.Pre-Hugo, come to think of it, my hair never got mussed.Grass long and mussed by wind.The store man Alexander headed them, stepped toward the boy Earl Varney and mussed his hair.The other was mussed, the bedspread pulled down and the pillows stacked against the headboard.A warm breeze mussed up her wispy hair.
mussmuss2 noun   no muss, no fuss
Examples from the Corpus
mussNo fuss, no muss and no need for professional advice.What Dickie likes is no muss, no fuss.No muss, no fuss, just good old displacement.
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Verb table
muss
Simple Form
Present
I, you, we, theymuss
he, she, itmusses
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Past
I, you, he, she, it, we, theymussed
Present perfect
I, you, we, theyhave mussed
he, she, ithas mussed
Past perfect
I, you, he, she, it, we, theyhad mussed
Future
I, you, he, she, it, we, theywill muss
Future perfect
I, you, he, she, it, we, theywill have mussed
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Continuous Form
Present
Iam mussing
he, she, itis mussing
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you, we, theyare mussing
Past
I, he, she, itwas mussing
you, we, theywere mussing
Present perfect
I, you, we, theyhave been mussing
he, she, ithas been mussing
Past perfect
I, you, he, she, it, we, theyhad been mussing
Future
I, you, he, she, it, we, theywill be mussing
Future perfect
I, you, he, she, it, we, theywill have been mussing
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