what does 'giving me the right hump' mean?

[Kisa]

English Language Tests, Intermediate level

ESL/EFL Test #507 "English Slang Idioms (249)", question 1

"We played live for the first time last night and it was a howling .......... We weren't sure how we would sound but apparently our band sounded OK," Steven said to Lewis.

(a) success
(b) match
(c) failure
(d) event

English Language Tests, Intermediate level

ESL/EFL Test #507 "English Slang Idioms (249)", answer 1

"We played live for the first time last night and it was a howling success. We weren't sure how we would sound but apparently our band sounded OK," Steven said to Lewis.

Correct answer: (a) success
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what does 'giving me the right hump' mean?

Kisa

[Kitosdad]

To get on your nerves. To irritate you. To depress you.

You want to see the back of him ........ leaving.!
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If you need me, I'm here.