phrase ·Rare ·Advanced level

Definitions

Phrase

1. 1
   Alternative letter-case form of STFD. Internet, alt-of, vulgar
2. 2
   Initialism of shut the front door. Internet, abbreviation, alt-of, initialism, mildly, vulgar
3. 3
   Initialism of sit the f*ck down. Internet, abbreviation, alt-of, initialism, mildly, vulgar

Synonyms

All synonyms

be quietkeep one's mouth shutstfu

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.