The definition of prudish is overly proper or too modest.
Someone who is very proper and cannot stand hearing any sexual reference, this is an example of someone who would be described as prudish.
like or characteristic of a prude; too modest or proper
Marked by or exhibiting the characteristics of a prude; priggish.
(comparative more prudish, superlative most prudish)
- of excessive propriety; easily offended or shocked, especially by sexual matters