A thrust or penetration (the act of pushing or driving something into); a forceful insertion.
警察は犯人の車のボディに突っ込みを入れて停止させた。
The police forced the criminal's car with a ram to stop it.
トンネル掘削機が岩盤に深く突っ込み始めた。
The tunneling machine began to bore deeply into the bedrock.
彼はナイフをポケットに突っ込みながら歩いた。
He walked while thrusting a knife into his pocket.
Digging into a matter; probing questions or going into depth on a topic.
会議では問題点にもっと突っ込みが必要だと上司が言った。
At the meeting the boss said we needed to probe the issues more deeply.
彼女はインタビューで過去の出来事に鋭い突っ込みを入れられた。
She was pressed with sharp questions about past events during the interview.
その論文は理論に対する突っ込みが足りないと批判された。
The paper was criticized for not probing the theory deeply enough.
The 'straight man' role in manzai comedy: the person who reacts to and corrects the funny or silly remarks (the tsukkomi).
あのコンビの突っ込みはテンポが良くていつも笑わせられる。
That duo's tsukkomi has great timing and always makes people laugh.
テレビではボケ担当と突っ込み担当がはっきり分かれていることが多い。
On TV it's common for one person to be the boke (funny man) and the other the tsukkomi (straight man).
彼は舞台で鋭い突っ込みを入れて場を盛り上げた。
He added sharp tsukkomi on stage and livened things up.
A quip, jab, retort, or comeback — a short pointed reply to someone.
友達の冗談に軽い突っ込みを入れて場が和んだ。
I made a light retort to my friend's joke and it eased the mood.
その店員の言い訳にお客さんが突っ込みを入れた。
A customer shot back a retort at the clerk's excuse.
テレビ番組では、芸人の突っ込みが注目されることが多い。
On TV programs, comedians' quick retorts often attract attention.
Including everything; putting everything together (used in contexts meaning to include or encompass all parts).
材料を全部突っ込みで混ぜてからオーブンに入れてください。
Mix all the ingredients together and then put them in the oven.
その計画には予算もスケジュールも突っ込み済みだ。
The plan already has budget and schedule included.
データを突っ込みで処理すると処理時間が短くなることがある。
Processing the data all at once can sometimes shorten processing time.
Slang (vulgar) for penetrative sex; an adult slang term for intercourse.
この表現は下品なので公の場では使わない方がいい（性的な意味の突っ込み）。
This expression is crude so it's better not to use it in public (referring to the sexual meaning of 'tsukkomi').