nosh UK /nɒʃ/US /nɑʃ/noun 3verb 2exclamation 1forms 3phrases 1 noun3 •(UK, slang) Food. •(US, slang) A light meal or snack. •(slang) Fellatio. verb2 •(slang) To eat a snack or light meal.They were noshing on fruit. •(slang) To perform fellatio (on); to blow. exclamation1 •(Australia, slang) An ironic response to a statement of the obvious. formsnoshed · noshing · noshes Phrases with nosh nosh offTo eat (something).