(idiomatic, Britain, slang) Annoyed, upset, angry.

simple past tense and past participle of cheese off

(idiomatic) Caught off guard, unprepared, or in an embarrassing situation.

Not vigilant; unprepared; inattentive. / Unexpectedly or by surprise.

The very beginning. / (US, slang) A close, longtime friend, one who has been around since the beginning.

At the very beginning; when something is entirely new.

(idiomatic) To discover, as by asking or investigating. / To discover or expose (someone) as disobedient, dishonest, etc. / To uncover a weakness in (someone).

(slang, vulgar) To beat really badly.

(idiomatic) In a state of elation; very happy; blissful.

(UK dialectal, Scotland, Northern England) To submit to one's fate.