What does fr14kb mean?

"fr14kb" seems to be a stylized way of writing "freak" using leetspeak, where numbers and letters are substituted for one another. The "14" represents the letters "r" and "a" (the 1 stands for "l" and the 4 for "a"), and "kb" could refer to "kill" or "bitch," depending on context. This type of language is commonly used in online gaming and internet culture.