Parodies of the song that ended Barney and Friends became a big hit in the 90s, enough so that Sherman’s book has a whole section on The Death of Barney.
I always assumed that the following was a Barney parody:
I love you, you love me,
people think that we’re just friends
but we’re really lesbians
The thing is, though, this was current on playgrounds in the 1950s along with “You Don’t Go Out With Boys Anymore/You don’t like Elvis Presley.” and a couple of others. Believe it or not, the 1950s were a boom time for playground songs about lesbians.
Most of the variations on this song, though, do seem to be much more violent, and generally do involve various ways to murder Barney the Dinosaur. Such as:
I hate you, you hate me
together we can kill Barney
one big shot and Barney’s on the floor
no more purple dinosaur!
Many of these songs went from playground to playground at roughly the speed of light in the 1990s, and have outlived Barney’s popularity. They’re connected to a long tradition of kids too old for a certain show slagging it off through song parody (see also: Howdy Doody)
Add the versions you heard in the comments!