to perform a task or activity very poorly, resulting in a negative outcome

used to say that someone has accepted the responsibility or blame for something and will not pass it to someone else

to unintentionally give an advantage to one's enemy or rival

to be inadequately prepared for a conflict or challenging situation

used to say that something or someone has many flaws, problems, or gaps that make it incomplete or unreliable

a major mistake or error, often made by someone in power, that leads to catastrophic consequences

to make a mistake, particularly in judging the amount of something

a reckless action that may result in serious consequences or failure

an accidental and minor mistake made while speaking

used to refer to a situation where individuals or groups unknowingly support or participate in something that will ultimately bring harm or negative consequences to themselves

to cause something to suddenly and completely stop, often in a dramatic or unexpected manner