Definition of red velvet in US English:

red velvet

noun

US
  • A type of rich chocolate-flavoured sponge cake which is coloured red (usually with food dye) and typically layered with white icing made with cream cheese. Frequently (and in earliest use) attributive, especially in "red velvet cake".

Origin

1950s; earliest use found in The San Antonio Light. From red + velvet.

Pronunciation

red velvet

/ˌrɛd ˈvɛlvɪt/