Only in middle schools, 'Dating' is a used word to tell that this girl is dating this boy and that they maked out, had 'sex', gave a blowjob even though it sounds fucking stupid and is pretty much not true. Can also be associated with trading Silly Bandz.
'Hey! Did you hear that Samantha and Derik are Middle School Dating?' said Bill
'Yeah, man! I heard that Derik traded some Silly Bandz for a blowjob!' said Lenny