# smoothifier

> English word · Noun

## Definitions
1. A floating widget inside a beer can, which (unlike earlier fixed versions) prevents the contents from overflowing if opened when warm.

## Etymology
From smooth + -ify + -er, a marketing coinage by Guinness.

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