Sometimes Y

He doesn't fit in with a, e, i, o, and u. He's more flexible, and exceptional, too. He's the other guy, the "sometimes" y. He's not quite sure who he wants to be. He's noncommittal, but very friendly. He's a consonant, and yet, a vowel, a monogrammic stich in a bath towel. He's unpredictable and often sly, who, on "Wheel Of Fortune," you do not buy. He swings wide his stride like a Mambo dancer, and beacons a question, challenging to answer.