Yeah - I mean, look at it this way.
Rodimus Prime was passed the Matrix by Ultra Magnus when he was the youthful 'Hot Rod'. This caused him to grow in size & power, but he was no longer the cool sports car of before - now he could only transform into some lousy camper van with a flashy paint job.
Not only that, but he had to change his name from the relatively acceptable 'Hot Rod', to the lame 'Rodimus Prime', simply so the slitty Japanese idiots that created him could cash in on the 'Optimus Prime' name. I mean, what was Optimus called before? Hot Opti? Jesus, give me a break.
So, already reeling from having a giant luck of shit shoved into his chest panel, being robbed of his youth, and the chance to do Arcee up the arse whilst still a 'teenager', and being robbed of his cool car form with the shitty camper van, AND, yes AND being lumbered with a name that instantly reminds you of a penis (they could have called him Hotimus Prime!), he inveitably turned to drink, which is Energon, and spoke a load of bollocks because of the booze & stress.
OMG - longest sentence EVAH!