A crack, crevice, split, or gap in a surface or structure—found in rock, wood, clothing, etc.
壁に小さな割れ目が入っている。
There's a small crack in the wall.
岩の割れ目に草が生えている。
Grass is growing in the crevice of the rock.
本の背表紙に割れ目ができてしまった。
A split has formed on the book's spine.
A vulgar/slang term referring to the opening of the female genitalia (vulva); often written in katakana as ワレメ.
彼は下着のワレメが見えているのを恥ずかしそうに直した。
Embarrassed, he adjusted his underwear because the gap was visible.
テレビのバラエティーで下ネタとしてワレメを連想させる表現が使われた。
On a variety show, expressions suggesting 'wale-me' were used as crude sexual jokes.