Buff Definition & Meaning | Britannica Dictionary (original) (raw)

Britannica Dictionary definition of BUFF

[count]

:

a person who is very interested in something and who knows a lot about it

Britannica Dictionary definition of BUFF

[noncount]

:

a light somewhat yellow or orange color

— see color picture on this page

:

not wearing any clothes

:

naked

:

to a naked condition

Britannica Dictionary definition of BUFF

[more buff; most buff]

US, informal

:

having a strong, muscular body or form

Britannica Dictionary definition of BUFF

[+ object]

:

to make (a surface) smooth and shiny by rubbing it

buff up

or

buff (someone or something) up

or

buff up (someone or something)

informal

:

to become stronger and more muscular or to make (someone or something) stronger and more muscular by exercising and weight lifting

— often used as buffed-up