pounce on

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pounce on (someone or something)

1. To physically leap or jump on (someone or something). I can't believe your cat pounced on my face! All I was doing was trying to rub its belly. Sarah could barely keep herself from pouncing on her boyfriend as he got off the train from Toronto.
2. To seize or take advantage of (something, such as a chance or opportunity) with great alacrity or enthusiasm. I understand wanting to weigh your options, but I think you'd be a fool not to pounce on the job they've offered you. I saw an opening where I might score a goal, so I pounced on it and took the shot!
3. To criticize, berate, or verbally attack someone. You don't need to pounce on me just because I said your favorite film is overrated!
See also: on, pounce
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

pounce (up)on someone or something

to spring or swoop upon someone or something; to seize someone or something. (Upon is formal and less commonly used than on.) As Gerald came into the room, his friend Daniel pounced on him and frightened him to death. The cat pounced upon a mouse.
See also: on, pounce
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

pounce on

1. To jump, leap, or bound onto something or someone: The cat pounced on the mouse and killed it. We saw a falcon pounce on a rabbit.
2. To criticize or attack someone verbally: He suddenly pounced on me for not returning his book.
3. To take advantage of something enthusiastically, as an opportunity; jump at something: She pounced on the chance to move to New York and go to law school.
See also: on, pounce
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
The dogs pounce upon any one if they find him walking on the road alone and injure him.
At every nook and corner criminals are lying ambush and they pounce upon every person whom they see him roaming alone and rob him of all the belongings, said a group of residents.
"We do have to respect them because they are a Premier League team with good players, but they are struggling and that is something we have to look to pounce upon."
Republican leaders were quick to pounce upon the upwardly revised deficit numbers released by the Obama administration.
The former Alaska Governor was caught on video as she glanced at notes written on her palm while making a speech, giving rival Democrats an opportunity to pounce upon her grade school trick.
LIVERPOOL manager Rafael Benitez has warned title rivals Manchester United his team is ready to pounce upon any mistake they make in the championship run-in.
They fear clubs throughout Europe, including Celtic and Rangers, would pounce upon it and look to play in different leagues.
Not all viewers of the programme would have the most recent research on the subject at their side, ready to pounce upon any possible inaccuracies.
Having lived on Wellington Road overlooking the lido, but well back from the sea wall, I have seen the ferocity of those storms which would directly pounce upon the people and cars in the proposed car park, and sand would erode every window in the proposed flats.
In his lab experiments at UC Davis, bass often ignored live prey that was swimming normally but immediately surged the length of the tank to pounce upon an injured fish.
In "Shakespace and Transversal Power," the introductory essay to the collection, the two editors pounce upon Stephen Greenblatt's characterization of Marlowe as "the really spectacular life of the late 16th century ...
"Today, radio stations, cable TV channels, Internet sites, newspapers and entertainment magazines eagerly pounce upon any celebrity 'controversy' that can be exploited for shock-and-awe value."
Adam, who many will pounce upon as Lynch's alter ego (I personally think it's Betty), runs afoul of a hilariously sinister cowboy with Nobel-worthy powers of persuasion.
"The DUP and Dr Ian Paisley will pounce upon them and cause them a lot of political discomfort at any future election if they can prise away a significant portion of their hard-line electorate.
Abdul-Jabbar pointed out that the deep state is still exist and seizes opportunity to pounce upon the revolution.