# Calvinball

> English word · Noun

## Definitions
1. A deliberately absurd sport without fixed rules.

## Etymology
From Calvin + ball. From a fictional game without rules, played in the comic strip Calvin and Hobbes.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/calvinball