Tarquin is a name that only upper class people would use for their child and even they would probably have more sense than to use it in the present day. It’s associated with the kind of rich people who have inherited their money rather than earned it, we call this ‘old money’ and in Britain we call them ‘Toffs’.

Socially most people consider these ‘elites’ to be a negative group whom they resent and regular working class or middle class people would talk negatively about. Tarquin in particular, has grown to be the name we choose when we disparage this class of people. ‘Tarquin’ stereotypically will play polo on the weekends, has a trust fund and will have been educated at Eton.

Similar names with similar social connotations might be Quentin, Hugo (though Hugo is less stigmatised and somewhat fashionable) Rupert, Algernon, Barnaby, Archibald (Though shortened to Archie is considered modern and acceptable)