Pronunciation: [nˈɒk blˈɒk ˈɒf] (IPA) 
The phrase "knock block off" is spelled as /nɑk blɑk ɔf/. The word "knock" is spelled with a silent "k" and the "o" is pronounced as a short vowel /ɑ/. "Block" is pronounced with a long "o" as /blɑk/. "Off" is spelled as it sounds with a short "o" and a voiced "f" sound at the end. This phrase is an idiomatic expression meaning to violently knock someone's head or block off.
The phrase "knock block off" is an idiom used to describe an act of extreme physical aggression, usually involving punching or hitting someone with great force. It signifies a violent act that is intended to cause significant harm or injury, particularly to someone's head or facial area. The term "knock" refers to the act of forcefully striking or hitting, while "block off" refers to the target area - the head or the face.
"Knock block off" can be used to convey the idea of a powerful blow that could potentially detach or dislodge someone's head from their body, although it is not meant to be taken literally. This expression is predominantly used in informal contexts to emphasize the severity or intensity of a fighting action.
Figuratively, "knock block off" can also be used to describe a verbal attack or criticism that is extremely harsh or damaging. In this sense, it suggests that the recipient may feel emotionally or psychologically assaulted by the insulting remarks. However, such usage is less common than the physical interpretation of the phrase.
Overall, "knock block off" serves as a vivid and exaggerated expression to illustrate a forceful and aggressive act, either physically or verbally, leaving a lasting impact on the recipient.
