Also one guilty of doing either of these. The ambiguity of this word goes back to its Latin root: vātēs meant any of seer/prophet/bard/poet, and while in daily life, no one would consider a hack poetaster a true seer (witness the opening of Juvenal's first satire), at the higher levels there was some conflation of the inspiration from the Muse and from a divinity that breathed through a seer. Notice, also, oracles delivered their words in verse -- in perfect hexameters, at Delphi, for example. These days, the word is usually understood to point at the prophet, but being (at least sometimes) of the other tribe it threatens, I tend to think of that meaning first -- especially around poetry slams.
And with a killer verse, he won the slam -- it was total vaticide.