A person is "shkrelied" when they have to pay an outrageously jacked-up price for something that they want or need because of the unbridled greed of the seller. Refers to pharma-bro Martin Shkreli, CEO of Turing Pharmaceuticals, who raised the price of a life-saving cancer drug by 5000%.
I bought some Packers tickets on eBay, but they cost me a bundle; I really got shkrelied.
Shkrr (originally Škrr) is a word originating from the Czech Republic. It was first used by the Czech rapper Yzomandias, and has gained popularity along the country since. It can be seen as an alternation of the word skrr, but it is not the same as skrrt.
It is an interjection, however it is not just used to describe the sound - it is the sound. It's usage may be similar to skrr, skrrt, or yeet.
Example 1:
Person 1: I bet you can't hit that bird with a rock.
(Person 2 throws a rock, hits the bird)
Person 2: Shkrr!
Example 2:
(Multiple people in a group, awkward silence.)
Somebody: Shkrr!
Everyone else: Shut up, you're not funny.