(idiomatic) to curry favor

(idiomatic) to hang oneself

(idiomatic) to go round in circles

(idiomatic) to work hard (at something)

actually, as such

to laugh in one's sleeve (laugh secretly and gloatingly)

opposites attract

to hit the road / to head, to set forth

bon appétit

(idiomatic, reflexive) to think of something, to make up, to make up out of thin air, to invent (false stories, figures, etc.), to pull out of one's ass (fabricate a claim with no factual basis or evidence)