also: つぼにはいる
expression, godan verb (-ru)
be hooked on; be crazy about; find hilarious
Idiomatic phrase meaning to be very amused by something or to be really into a hobby or interest. Often used when something strikes one's funny bone or becomes an obsession.
あの芸人のギャグがツボに入って、ずっと笑ってた。
That comedian's gag really cracked me up, and I couldn't stop laughing.
最近、プラモデル作り
Lately I've gotten really into building plastic models and do it every night.