いじる

fiddle with, mess with, tamper with, tease, make fun of

verb · present tense Rare #41,541
fiddle with, mess with, tamper with Often implies handling or changing something in a way that is unwanted or unnecessary.
JA: 人のスマホを勝手にいじるな。
EN: Don't mess with someone else's phone without permission.
tease, make fun of Colloquial; often means jokingly teasing someone about something.
JA: 彼はいつも私の髪型をいじる。
EN: He always teases me about my hairstyle.

今から脚本いじるのは…

Starting to tweak the script now is…

— One Cut of the Dead (2017)

勝手に計画をいじるなよ

Don't go changing the plan without asking.

— レザボア・ドッグス (1992)

トムはいつだって俺の服装をいじる。

Tom is always making fun of the way I dress.

その鍵をいじるな!

Don't mess with that key!