Torture device used by swimmers to strengthen upper body. Sometimes used with weights and/or bands to make it even harder. Often used under the supervision of Meredith or John, in which case cheating is not possible.
Bridget: "guess what! worst news of my life! my mom might buy a vasa for my house!"
Swimmer: "oh my god this vasa is so hard, I can't do it anymore."
John/Meredith: "come on, keep going, its only 3 on the 1:00 fly! make sure your recovery position is correct."