Bonosnono

1 clue
U2 frontman's bit of naughtiness?
Similar answers:
Bono
Bonobo
Bonobos
Bonomo
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Bonoperformance
Bonos
Bonosnono
Bonovi
Bonovox
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Cinnabono
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Combonover
Cuibono
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Fresnonono
Hatcherbono
Hbonow
Justsaybono