Would the following be wordiness or slang you felt uncomfortable because these people were fronting like they really hard core?

The phrase "you felt uncomfortable because these people were fronting like they really hard core" is both wordy and uses slang.

Here's why:

Wordiness:

* "Felt uncomfortable" can be shortened to "uncomfortable".

* "Fronting like they were really hard core" is quite a mouthful. It could be simplified to "pretending to be tough".

Slang:

* "Fronting" and "hard core" are both slang terms. While they're commonly understood, they might not be appropriate in all contexts, especially formal writing.

Here are some ways to rephrase the sentence:

* "I felt uncomfortable because they were pretending to be tough."

* "Their act of being tough made me uneasy."

* "I was put off by their attempts to appear hard."

By removing the unnecessary words and replacing the slang with more formal language, the sentence becomes clearer and more concise.