Prolix

\proh-LIKS; PROH-liks\ means (of a person) given to speaking or writing at great, unnecessary, or tedious length; long and wordy

Example: I got bored listening to a prolix lecturer telling us more than we want to know. He could have made the lecture brief and concise.

Limerick:
A prolix fop
Went to a shop
And asked for a shoe
But got in lieu
Stuff that made his jaw drop.

dictionary.com page link for prolix