The phrase "classy by" is grammatically correct and can be used in written English.
It is typically used to describe something or someone that possesses a sense of elegance, sophistication, and refinement. Here's an example of how it can be used in a sentence: "Her outfit was classy by all standards, with the perfect combination of simplicity and luxury."
Keep it classy by then driving a few minutes down the road to the Killingworth, a 17th-century inn which, in recent years, has scrubbed up very nicely.
But all that united those few pieces I was able to find was a determination to appear classy by getting some French into the first few paragraphs.
This year the lineup looks old-fashioned and rather classy by metal standards, with Judas Priest, Slayer, Slipknot and Phil Anselmo's Superjoint Ritual.
Even the layered mesh dress sketched with a tangle of naked bodies, the most blatant of Kane's animal-attraction-fuelled collection, was made classy by the dreamy, balletic layered tulle.
The luxurious party setting made Ferrero Rocher a cut above your average Christmas chocolate and cleverly played into people's desires to be seen as stylish and classy by their friends.
Thicke kept it classy by keeping her front and center.
A script by Julian Fellowes and some historic Italian locations ensure a classy but by-the-book Bard interpretation.
Nathan Dyer's first-half opener was followed by classy efforts by Modou Barrow and on-loan Tom Carroll.
And smoking fags outside in the cold will be made infinitely classier by a shiny Laura Marling portable ashtray.
No longer something you eat out of a box in front of the box, pizza is getting classier by the day, topped with quality ingredients and paired with Prosecco, Peroni or Pinot Nero.
You could make this classier by using artisanal pickles and small-batch whiskey.
