From the Super Mario Wiki
“Whatever you do, don't throw a Blue Berry into the well! ...Hey guy! By the way, do you even know what my name is? They call me Tolielip. I personally think it's kind of a rude name. I mean, I never lie! Never! ...Heh heh heh, ha ha ha!! Wah ha ha ha ha ha ha ha ha!! Baaaaah ha ha ha ha!!”
Tolielip is a goofy-looking narcissus in Paper Mario that lives in Flower Fields. Present near the edge of the central hub, his only role is to give Mario false hints about his objectives. Ironically, his advice can be useful to the heroic plumber; if Mario does the exact opposite of what Tolielip says, he can make progress in the level or uncover helpful secrets.