Shikk

Shikk (シャーツ星, Shātsusei; lit. "Planet of the Shirts") is a planet conquered by Vegeta, Nappa, and Raditz for Frieza. Its inhabitants are the Shirts.

According to Frieza, it is a small planet, and Zarbon estimates it would have taken him only a full day to conquer it, while it took the three Saiyans three days to do so.