'laugh-out-loud' originates from the English words 'laugh,' 'out,' and 'loud,' where 'laugh' meant 'to express mirth,' 'out' meant 'in a manner that is open or public,' and 'loud' meant 'with a high volume.'

'laugh-out-loud' evolved from the phrase 'laugh out loud,' which was used to describe something that causes audible laughter.

Initially, it meant 'to laugh audibly,' but over time it evolved into its current meaning of 'extremely funny or amusing.'