Shaq versus ... Pete Davidson from "Saturday Night Live?"
Yep.
The comedian apparently HATED Shaq's undercover driver video he made for Lyft -- 'cause after we posted it on TMZ Sports, Pete swatted the clip down as "f***ing lame."
Pete posted his review on Instagram -- and while he didn't mention Shaq by name, it was obvious what he referring to.
"Hey you know what would be hilarious guys? If a really famous person went undercover as an Uber driver. Isn't that so hilarious and crazy!! UGH SO F***ING LAME.