ugh BrE AmE ʊx ʌɡ, jʌx, ɯə, uː —and various other non-speech exclamations typically involving a vowel in the range [ ɯ, u, ʌ, ɜ ] and sometimes a consonant such as [ x, ɸ, h ]
UGH
Meaning of UGH in English
Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012