(noun) The feeling that is obtained after watching the new Transformers movie. It is a feeling of pure joy, exhilaration, and "holy shit I wish my car could do that"-ness. (Side note: a side effect of a transformergasm is often a REAL orgasm)
"OHMYGAWD dude, watchingOptimus battle Megatron just gave me the biggest transformergasm EVER!"
1.A person who is endulged in the TV/Comic Series transformer.
2. A person who only talks about transformers, and is single.
3. The annoying kid in the class who can't shut up about stupid robots.
Me: Your transformer-sexual!
Person: No I am not just Bumble is super awesome, wanna see my collection of him?
Me: No, go shove your flash drive up your ass.
When driving behind someone (most of the time elderly), and their silhouette is not visible from your point of view, giving the impression that the car is being driven by itself.
I was driving on I-95 when this car cut me off. I saw it was a transformer so I sped past and blasted the driver with obscenities.