1
to cut into (a line, conversation, etc.);to force oneself into (e.g. a crowd);to wedge oneself into;to squeeze oneself into;to intrude on;to interrupt
人の話に割り込むのは失礼だぞ。
It is rude to interrupt others.
2
to fall below (of stock prices, sales, etc.);to drop below
3
to wedge;to play a wedge
See also:
割り込み (わりこみ)
Other forms
割込む 【わりこむ】 (search-only kanji form) · 割りこむ 【わりこむ】 (search-only kanji form) · わり込む 【わりこむ】 (search-only kanji form)