The phrase "crass jokes" refers to jokes that are vulgar, tasteless, or lacking in sensitivity. These jokes often rely on offensive or inappropriate humor that may be disrespectful towards others. Full definition
It's a typically Deadpool-esque crass joke about contraception, suggesting that Warner Bros. should've never allowed Green Lantern to be conceived in the first place. (cbr.com)
Mysterion, Mint Berry Crunch, and more heroes are coming to the Switch to fight RPG battles and make crass jokes. (kotaku.com)
Theron is also obviously having fun, but Elaine makes some really crass jokes at the expense of deaf people and the mentally challenged, eliciting gasps from the audience. (laineygossip.com)