welshism
/ˈwɛlʃɪzəm/Definitions
1. noun
A mannerism or peculiarity of speech or behaviour characteristic of the Welsh people.
“The comedian’s Welshism was a notable aspect of his stage presence.”
2. noun
A characteristic or trait of Welsh people, especially one that is stereotypical or exaggerated.
“The TV show’s portrayal of the Welshman’s love for singing was a classic Welshism.”