çarpnt
Çarpnt is not an attested entry in standard Turkish dictionaries and does not have a widely recognized standalone meaning. It most likely represents a misspelling or shorthand for the Turkish noun çarpıntı, which denotes the sensation of a rapid, strong, or irregular heartbeat, commonly translated as palpitations.
In Turkish, çarpıntı is formed from the verb çarp- “to strike, beat” with the abstract noun suffix
In practice, if someone encounters çarpnt in text, the intended meaning is usually Çarpıntı (palpitations). Palpitations