bugbears
ˈbʌɡbɛː
noun
a cause of obsessive fear, anxiety, or irritation.
the biggest villain is that adman’s bugbear, saturated fat
pet hate,hate,bane,irritant,irritation,dislike,anathema,aversion,vexation,thorn in one’s flesh/side,bane of one’s life,torment,nightmare,horror,dread,curse,bugaboo,bogey,bête noire,peeve,pet peeve,pain,pain in the neck,hang-up