slow off the mark

black mark

Something that negatively affects someone's reputation.

do a slow burn

To experience a gradually increasing feeling of anger or frustration; to slowly burn.

easy mark

Someone who is easily fooled or victimized.

get off the mark

To score one's first points

make one's mark

To make, or leave, a lasting impression, especially to achieve prominent success.

mark my words

Listen to me; used before or after a statement one wishes to emphasize, especially a prediction.

mark one's own homework

To assume the role of evaluating one's doings when a disinterested party is required.

mark someone's card

To forcefully correct someone's behaviour.