Johnny Knoxville just got back at Sami Zayn for blowing up his phone and talking crap on Thursday ... by sharing the WWE Superstar's phone number for all of Los Angeles to see!!
TMZ Sports just obtained video of the "Jackass" star executing his latest stunt on Friday ... explaining his actions in a hilarious video.
"So yesterday, Sami Zayn got my personal phone number and was texting and stalking me all day," Knoxville says.
"So today, for my birthday, I am flying his phone number over Los Angeles. 407-574-1532.