sesquipedalian

\ses-kwuh-puh-DAYL-yuhn\, adjective:
1. Given to or characterized by the use of long words.
2. Long and ponderous; having many syllables.

--George, your speech is good, but I’ll be honest: it’s a little on the sesquipedalian side.
--I say! This “Hi” is the very antithesis of the sesquipedalian verbiage I have come to acknowledge and appropriate in my daily vernacular! Harumph!
--Absurd! Prince Markie Dee was QUITE OBVIOUSLY the most sesquipedalian of the Fat Boys!
--“I didn’t give ya mono. I gave ya MONONUCLEOSIS,” remarked Cindy the Infamous Sesquipedalian Whore.
--Granted, supercalifragilisticexpialidocious is sesquipedalian, but quite as sesquipedalian as PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS,.