An unimportant, unsuccessful, or worthless person.
〈英，非正式〉小人物；不成功的人；不中用的人
a bunch of glue-sniffing no-marks with underfed dogs on strings
Example sentencesExamples
But the slightly futile gesture of outwitting corporate no-marks is more than offset by the final scene.
When you're that kind of player, it must be so fun to play against no-marks who fall for every stepover, trick, flick and shimmy.
So let's lay off Tim and just hope in the fullness of time he becomes a much better commentator than some of the other no-marks who qualify as pundits during Wimbledon.
You had to drag in this bunch of no-marks to make up the numbers!
Why is everyone getting into such an excitable lather over the predictable remarks of a no-mark?
Scott Murray is a bit worried that he's going to be horribly let down again if another no-mark triumphs.
Whole Wide World is one of the first songs a bunch of scruffy young teenage no-marks ever played in public, down in Lower Salthill.
Sheridan was never going to do to him what he did to the Aussie no-mark the week before.
On arrival, his black Buick LaCrosse circled the car park looking for a spot after some low-ranked no-mark planted his jeep in Woods' space.
Origin
1980s: perhaps from the idea of performing badly at school.