(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

(gambling, idiomatic) Snake eyes: two ones, after rolling two dice. / (derogatory, idiomatic) Wearing two layers of hitoemono (unlined summer-weight kimono).

hairpin

hairpin / (computing) pinning (attaching a UI item to another item)

(computing) to pin (attach a UI item to another item)

bobby pin (hairpin)

from the beginning to the end / variously; with different types

(organic chemistry) propyne