partirse betyder på engelska

laugh one's head off▼(laugh uproariously)
verb
[UK: lɑːf wʌnz hed ɒf] [US: ˈlæf wʌnz ˈhed ˈɒf]

part [parted, parting, parts]▼(to become divided in two or separated)
verb
[UK: pɑːt] [US: ˈpɑːrt]

laugh one's head off▼(laugh uproariously)
verb
[UK: lɑːf wʌnz hed ɒf] [US: ˈlæf wʌnz ˈhed ˈɒf]

sidesplitting▼(exceptionally funny)
adjective
[UK: ˈsaɪd.ˌsplɪ.tɪŋ] [US: ˈsaɪd.ˌsplɪ.tɪŋ]