crack
to crack one's side with laughing

die
dado (para jogar)

fall about
he fell about laughing

help
I couldn't help laughing

jackass
laughing jackass

kill
to kill oneself laughing

laughing
laughing gas

Laughing Dove
Spilopelia senegalensis

Laughing Falcon
Herpetotheres cachinnans

Laughing Gull
Leucophaeus atricilla

Laughing Kookaburra
Dacelo novaeguineae

Laughing Owl
Ninox albifacies

LOL
laughing out loud

matter
...that's no laughing matter / it's no

mood
to feel in no mood for laughing

ROTFL
rolling on the floor laughing

shake
to shake one's side (laughing)

stock
a laughing stock

what
what are you laughing at?