突(つ)っ込(こ)むto thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip

プラグをコンセントに突(つ)っ込(こ)む。

Plug the plug into the outlet. {to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip}

暴走(ぼうそう)している車(くるま)がガードレールに突(つ)っ込(こ)んだ。

The car that was running wild crashed into the guardrail. {to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip}

暑(あつ)いので冷(つめ)たい水(みず)が入(はい)ったバケツに手(て)を突(つ)っ込(こ)みました。

Because it was hot, I plunged my hand into a bucket filled with cold water. {to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip}

曖昧(あいまい)で分(わ)かりにくい説明(せつめい)をしたのなら聴衆(ちょうしゅう)から突(つ)っ込(こ)まれて当然(とうぜん)だ。

If you gave a vague and hard-to-understand explanation, it's natural to be questioned by the audience. {to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip}

走者(そうしゃ)が勢(いきお)いよく本塁(ほんるい)に突(つ)っ込(こ)んだ結果(けっか)、審判(しんぱん)はセーフだと判断(はんだん)しました。

As a result of the runner vigorously rushing into home base, the umpire judged it as safe. {to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip}