(UK, slang) Hard at work; preparing oneself to work hard.

(idiomatic, informal) To severely berate someone.

(idiomatic) To suddenly and sharply rebuke or insult a person, especially in response to a harmless remark.

(idiomatic, informal) To laugh uproariously.

(informal, emphatic, postpositive) Absolutely not; used to describe how little one needs an undesirable thing or situation.

present participle of think with one's little head

Alternative form of think with one's little head

(idiomatic, euphemistic, usually humorous, of a male) To make decisions or act based on one's sexual impulses rather than based on clear reasoning.

(idiomatic) To allow (someone) to act without constraint: to give (someone) free rein.

To kill, especially by beheading. / (idiomatic, by extension) To destroy; to defeat utterly.