The song's title refers to "raining hell on one's opponent", being derived from an Arabic expression meaning "war strike" or "mayhem".

Israeli musical duo Ness and Stilla [he] formed in 2023 and had a successful debut single in April 2023 with "Tik Katan" (Small Purse).

Ness (Nessya Levi [he]) and Stilla (Dor Soroker [he]) said that they wrote "Harbu Darbu" to raise the Israeli people's morale, deciding it was "time to replace the sadness with anger".

In a verse by Ness, she raps about how all the girls have their eyes on the soldiers and remarks on how even the "guy on the news" is beginning to look handsome, referring to television presenter Danny Kushmaro.

It tells the people of Gaza to "wait for [bombs] to rain on you like a debt",[6] with one verse referring to Hamas as "sons of Amalek",[5] echoing Prime Minister Benjamin Netanyahu's statement in the wake of the attack, saying that Israelis were "committed to completely eliminating this evil (of Hamas) from the world", adding: "You must remember what Amalek has done to you, says our Holy Bible.

"[b][10] The lyrics call for enemies to be "Xed out",[c] using the phrase "every dog's day will come" in Arabic,[5] conveying the idea that wrongdoers will eventually face consequences.

The song goes on to call for the deaths[13][14][15] of Western celebrities Bella Hadid, Dua Lipa, and Mia Khalifa, who expressed solidarity with the Palestinian people and criticized Israel.

[16][17][18] A review for "Harbu Darbu" in The Times of Israel found that the song "encapsulates a feeling of righteous fury" following the previous month's Hamas-led attack,[5] while an article in The Jerusalem Post called it an "angry rap tune".

[20][21] Billboard magazine included "Harbu Darbu" in a Hanukkah playlist, comparing it to Leonard Cohen's performances for the IDF during the 1973 Yom Kippur War.

The video, directed by Omer Aloni, features the two musicians in "fashionably casual clothes" in various urban and desert locales, including a warehouse parking lot and a club.