The Houston Astros ain't safe from getting totally roasted for their sign-stealing scandal ... not even by NHL mascots!!
The Philadelphia Flyers' beloved freakish-lookin' thing named Gritty took a jab at the 'Stros during the team's 3-0 over the Pittsburgh Penguins on Wednesday ... using a trash can with Houston's logo to pump up the crowd.
On top of that, Gritty had a guy stand next to him while holding a sign that read "Gritty learnt this from the Astros."
Of course, investigators concluded the Astros banged on a trash can to tip-off batters on which pitches would be coming their way ... ya'know, like cheaters do.