(chiefly UK and Ireland, idiomatic, vulgar, simile) Extremely happy; obviously satisfied and carefree.

(simile) extremely light, having minimal weight

The son of unmarried parents, an illegitimate child, a bastard. / (derogatory, slang) An objectionable person. / Used other than figuratively or idiomatically: see son, whore. (the son of a prostitute)

(simile) Extremely thick and heavy, so as to make it impossible to move. / (simile, of a person) Very reliable and dependable

(idiomatic) To experience an epileptic seizure. / (idiomatic) To become suddenly enraged.

(simile) To be a perfect fit, to be exactly the right size.

(transitive, simile) To be able to discern someone's thoughts from his or her body language or other behavior.

(simile) To swear a lot; to utter many swear words.

(idiomatic) To eat a quick, light snack.

To fall off something, or down something. / (idiomatic) To fall in price or value.