Aaron Rodgers -- Buys Worst Girl Scout Cookies at Oscars

First off ... props to Aaron Rodgers and his girlfriend Olivia Munn for reaching into their pockets and shelling out some cash to help the Girl Scouts at the Oscars Sunday night.

That being said ... WHO THE HELL BUYS SAVANNAH SMILES?!

(FYI, Savannah Smiles are zesty, lemon-flavored cookies dusted with powdered sugar ... which sound fine, but they're no Thin Mints).

The good news ... Munn got a full box of Thin Mints, because she clearly has taste.

Oscars host Chris Rock says he ultimately raised more than $65k in his Oscars Girl Scout cookies stunt -- including $20 from Vice President Joe Biden.

Hopefully, he got something better than SAVANNAH SMILES!!!