👉 The term "STLV 4" is a reference to someone who uses slang or profanity too much and makes jokes at their own expense. This phrase originates from the popular television show "South Park", where a character named Rick Strickler gets caught with some inappropriate language in class.

Here’s an example sentence using the slang term: "Rick, you are STLV 4. You know how to make me laugh every time I use it." This sarcastic expression is intended to play upon the stereotype of someone who speaks too much or excessively vulgarly, often seen as a sign of maturity and sophistication.