the.com/greasy

the texture that turns a napkin transparent and a meal unforgettable.

means Coated with or resembling grease — slick, oily, and faintly slippery to the touch.

from From 'grease,' which came into English through Old French 'graisse,' itself from Latin 'crassus' meaning 'thick' or 'fat.' The '-y' is the same humble English suffix that turns 'mud' into 'muddy' and 'dirt' into 'dirty,' marking a thing as full of, or covered in, the noun before it — so 'greasy' is, quite literally, 'full of fat.'

light trick
oil makes paper translucent by matching its refractive index
slang origin
once meant a sly, untrustworthy con artist
spoon culture
greasy spoon diners named for cheap, slick griddles
science
grease is just fat thinned by warmth into flow
for instance

spago's spaghetti carbonara — wolfgang puck's beverly hills restaurant famous for its notoriously rich, buttery pasta since 1982

deep fried mars bar — scottish chip shops, especially in edinburgh and glasgow, serving battered candy bars since the 1990s

mcdonald's worst offender — the bacon & cheese grand mac contains 563 calories and 28g fat per half-sandwich

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