a pain in the ass

US /ə peɪn ɪn ðə æs/
UK /ə peɪn ɪn ðə æs/
"a pain in the ass" picture
1.

a person or thing that is annoying or causes a lot of trouble

:
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My little brother can be a pain in the ass sometimes.
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Dealing with all this paperwork is a pain in the ass.
:
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