From the Super Mario Wiki
Lip's Stick is an item in the game Super Smash Bros. Melee and makes a return in Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS / Wii U, where it is used as a battering item. When a player gets hit by a Lip's Stick, a small flower would be planted on his or her head, doing gradual damage. Players hit continuously would cause the flower to grow larger, prolonging the duration it is present, thus causing more damage. With a strong or Smash attack, some magic shoots out of the item, slightly extending its range. Eventually this magic runs out, but players hit by the item itself will still suffer its effects.
Super Smash Bros. Melee
Super Smash Bros. Brawl
Super Smash Bros. for Nintendo 3DS / Wii U
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