Joker used in a sentence

Joker in a sentence as a noun

"A joker is someone who does not complete something, and has excuses.

After hearing the stories about him, he just reminds me of the joker in The Dark Knight.

The joker guy and Adria will now both have reputations that will affect their careers.

Fireworks are an exercise in frustration as some joker always sticks his iPad in the air to try to capture a picture.

So a joker decided to embed some Anti Virus bait in the blockchain, just a few bytes is enough to make the software go nuts deleting a whole lot of files the Bitcoin client needs.

" and, while it won't convince them to pay you in Bitcoin since no power under earth or heaven will do that, it might convince their decisionmakers to go with someone who is not a joker for their professional services.

"So he's unable to actually live up to the work ethic he espouses and purports to be a paragon of and as a result wants his staff to fill in the blanks while he works on "something else"; to just "get it ******* done" and not be "jokers".