Mame Block

From the Super Mario Wiki
A Mame Block, also known as a Present

A Mame Block (otherwise known as a Present) is one of the three Mametchi's special items that appeared during the events of Mario Kart Arcade GP 2. The item works in a similar approach of a Basin when the player uses it. When a driver gets hit by the item, the player will stop for a moment, losing time during the race.