An expression of disgust (3)

I believe the answer is:

ugh

'an expression of disgust' is the definition.
(I've seen this in other clues)

This is the entire clue.

(Other definitions for ugh that I've seen before include "It's revolting" , "It's nasty" , "How repulsive!" , "That's disgusting!" , "I'm disgusted!" .)

I've seen this clue in The Globe and Mail.

Want a hint initially instead of a full solution? Install my app