Obviously Eugene was trying to write a bubble-gum pop tune. For those of you that are not familiar with the genre, bubble gum songs were sickly sweet, silly songs aimed at pre-teens that usually contained some sort of sexual inuendo for them to snicker at. Ever hear the song - Yummy Yummy Yummy? ('yummy, yummy, yummy, I got love in my tummy')? That was true bubble-gum.
Boink I'm A Lover was on the Green Album, which was the one that was produced and recorded by an outside service that Eugene sent his sheet music to to be turned into a record. Which means the production is weird and different from all the other songs. It is the first song on side two of the album, which was usually played first, making Boink I'm a Lover the first song of Eugene most of us heard played.
The song starts with a 3 note bass intro, and goes immediately into 'Boink I'm a lover' which really jumps out at you and and be a bit surprising - so brace yourself.
I might add some other thoughts later, but I have to admit that this is not one of my favorite Eugene songs and I can't think of much more to say right now, other than - give it a listen.