Where does “cười lăn cười bò” come from?

cười lăn cười bò (Vietnamese) comes from Vietnamese cười bò, from Vietnamese bỏ, from English board, from English boardrider, from English rider, from Middle English ridere, from Middle English ryder, from Old English rīdere — to fit, to fix, to put together.

cười lăn cười bò (Vietnamese): to laugh one's head off; to roll on the floor laughing (ROFL); to laugh one's ass off; to laugh one's arse off (LMAO); to laugh out loud (LOL)

Definitions

  1. to laugh one's head off; to roll on the floor laughing (ROFL); to laugh one's ass off; to laugh one's arse off (LMAO); to laugh out loud (LOL)

Ancestry of “cười lăn cười bò”, step by step

cười lăn cười bò traces back through two separate lines of ancestry.

via Vietnamese cười bò

StepLanguageWordMeaning
1Vietnamesecười bòto double up with laughter; to laugh out loud
2Vietnamesebỏto put, to place; to leave, to abandon; to quit
3EnglishboardA relatively long, wide and thin piece of any...
4Englishboardridersurfer
5EnglishriderOne who rides, often on a horse or a motorcycle;...
6Middle EnglishridereAlternative form of ryder
7Middle EnglishryderA rider or equestrian; one who rides a horse; A...
8Old Englishrīdererider, knight
9Old Englishrīdanto ride
10Proto-West Germanicrīdanto ride
11Proto-Germanicrīdanąto ride
12Proto-Indo-Europeanrēydʰ-
13Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via Vietnamese cười lăn

StepLanguageWordMeaning
1Vietnamesecười lănto split one's side with laughter; to laugh out loud
2Vietnameselặnto dive; to hide; to set
3EnglishlaneA road, street, or similar thoroughfare; A narrow...
4Middle Englishlanelane, alley narrow passage between buildings
5Old Englishlanelane, narrow path
6Proto-West Germaniclanulane, passageway
7Proto-Germaniclanōlane, passageway
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European rēydʰ-Every word from Proto-Germanic rīdaną