TO CRACK sb UP – to make sb laugh.
SP: hacer reír; FR: faire mourir de rire; RU: рассмешить.
*His joke about an ostrich CRACKED us UP.
TO BURST OUT LAUGHING – to laugh suddenly (CRACK UP is a synonym too).
SP: romper a reír; FR: éclater de rire; RU: взрываться от смеха.
*We BURST OUT LAUGHING when he showed us his old photos.
TO BEND OVER LAUGHING – laugh uncontrollably.
SP: doblarse de risa; FR: plier en deux de rire; RU: смеяться до упаду.
*My colleagues BENT OVER LAUGHING when I told them how I fell in front of our boss.
TO LAUGH your head OFF – to laugh very loudly and for a long time.
*I recommend you this new comedy! You’ll laugh your head off!
TO LAUGH sth OFF – dismiss sth as not serious.
SP: tomarse algo a broma; FR: ne pas prendre qch au sérieux; RU: не принять всерьез.
*She is a successful singer because she LAUGHS OFF negative reviews.