From The Chicago Manual of Style (17th edition), 5.250 Word Usage:
fulsome, adj. This word does not preferably mean “very full” but “too much, excessive to the point of being repulsive.” Traditionally, a “fulsome speech” is one that is so overpacked with thanks or hyperbole as to sound insincere. The word’s slipshod use arises most often in the cliché fulsome praise, which can suggest the opposite of what the writer probably intends.
Where I work, about once a week someone suggests “fulsome discussion” of something.