English · Slang Attested

fontcest

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

The incestuous ship of brothers Sans and Papyrus from the video game Undertale.

Where it’s used: Used American English

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “fontcest” mean?

The incestuous ship of brothers Sans and Papyrus from the video game Undertale.

Is “fontcest” formal or informal?

fontcest is generally slang.

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