noun, noun, used as a suffix
meddling; fumbling; fondling; playing around with
Refers to touching, adjusting, or interfering with something in a casual, often idle or playful way. Can be used as a suffix in compounds like スマホいじり (playing with one's smartphone).
彼はいつも機械いじりが好きだ。
He always likes tinkering with machines.
スマホいじりに夢中で、話を聞いていなかった。
He was so absorbed in playing with his smartphone that he didn't listen to the conversation.
弄り is the noun form of the verb 弄る (to touch, fiddle with, or meddle). 弄り emphasizes the action as a noun or suffix, while 弄る is the verb itself.
Derived from the verb 弄る (いじる, 'to touch, fiddle with'). The noun form 弄り is used to describe the act of meddling or playing with something.