DeGeneres started the game with "Never have I ever sexted," which elicited a surprising "I have" response from Kendrick, Snoop and Stewart.
"Oh my God I'm so glad I'm here today," an excited Kendrick said.
"Wow! Martha!" DeGeneres said. "You've sexted? Do you know what that is?"
"I have used technology for a lot longer than you have, Ellen," Stewart fired back.
DeGeneres asked Stewart for more information about her sexting partner, but Stewart wasn't giving in.
"It doesn't say 'none of your business' here," Stewart said, holding up the game's paddle.
Another statement, "Never have I ever been stoned on a talk show," set Snoop apart from the others as he lifted his "I have" paddle above his head.
Kendrick was on Ellen to promote her upcoming memoir and her new film Trolls with Justin Timberlake.
Stewart and Snoop were on hand to discuss their new VH1 show, Martha and Snoop's Potluck Dinner Party.