adverb
all night; throughout the night
Colloquial adverb meaning 'all night long', often used in casual speech. Similar to 夜通し (よどおし) but more informal.
See also: 夜通し
友達と夜っぴてゲームをした。
I played games all night with my friends.
夜っぴて働いて、朝方にやっと寝た。
I worked throughout the night and finally went to bed in the early morning.
夜通し is a standard neutral term for 'all night', while 夜っぴて is more colloquial and emphatic.
Derived from 夜 (よ, 'night') + っぴて, an emphatic suffix possibly related to 通し (とおし, 'through'). The exact derivation is uncertain.