The phrase "a funny impression" is correct and usable in written English.
It can be used when describing a humorous mimicry or representation of someone or something.
Example: "She did a funny impression of the teacher that had everyone laughing."
Alternatives: "a humorous portrayal" or "a comical imitation".
The first one I ran into was Steven Chu, a diminutive man with a spiky fauxhawk who laughs into his hands like the Stefan character from "Weekend Update" and does a very funny impression of Tyra Banks as a reality show judge.
One of her tales includes an uncannily funny impression of a besotted W. H. Auden.
Her friend Leigh Francis, who was responsible for a brutally funny impression of her on his TV show Bo' Selecta!, didn't realise it was the real Brown behind the hair.
Later in life, Leonard would do a very funny impression of me in which he made fun of the fact that I can't stop working.
'SATURDAY NIGHT LIVE' AND OTHER POLITICAL POWERS -- On "SNL," Darrell Hammond's scathingly funny impression of Al Gore (the tilted head, the slight drawl, the word "lockbox") was matched by Will Ferrell's equally brilliant impression of a dazed and confused George W. Bush, snickering his way toward the presidency.
At any rate, this is bad news for anyone who's gone to work for FiveThirtyEight and thinks they can just skate by on an endless array of pieces titled "[NAME OF CANDIDATE] Is The New Frontrunner, But Is That Secretly A Huge Disadvantage?" based on funny impressions they had whilst popping a squat, like most of the rest of the political media.
He didn't carve out a 10-year major-league career simply by doing funny impressions of fat managers.
Watch Emily Atack's, from 'I'm a Celebrity... Get Me Out of Here!', guide to creating some super funny impressions.
He does grownup and funny impressions, of Hitler, Mussolini Roosevelft, and the french and British diplomats.
