ichidan verb, intransitive verb
become senile; go dotty
Refers to age-related mental decline, memory loss, or childish behavior in the elderly. Often used seriously or sympathetically.
祖父は最近少しボケてきたみたいだ。
My grandfather seems to have become a little senile recently.
Anyone can become senile as they get older.
ichidan verb, intransitive verb
be out of it; be spaced out; be slow on the uptake
Describes a temporary mental fog, confusion, or slowness, not necessarily age-related. Can be used for anyone who seems dazed or not thinking clearly.
寝不足で頭がボケている。
I'm so sleep-deprived that my brain is foggy.
暑さでボケてしまって、何を言われたか覚えていない。
I was so out of it from the heat that I don't remember what was said to me.
ichidan verb, intransitive verb
play dumb; act clueless; say something silly (on purpose)
Often used in comedy (manzai) or casual conversation when someone deliberately acts stupid or makes a silly remark for laughs. The 'straight man' (tsukkomi) role often points out the boke.
またボケてるよ。今度は何を言い出すんだ？
You're playing dumb again. What are you going to come out with this time?
彼はわざとボケて、みんなを笑わせた。
He deliberately said something silly and made everyone laugh.