4L
For life
Example
I'm a Toyota guy 4L; can't beat them for reliability
4L definition by Slang.net
This page explains what the acronym "4L" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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People use 4L (for life) to succinctly express their love for a person, group, or item. For example, a T Swift fan might post "I'm a swiftie 4L; doesn't matter how mid her next album is" to express their undying devotion to Taylor.
On social media, you might encounter 4L in users' usernames, when they've named their account after a thing they love. A user whose username is AvacadoToast4L, for example, is likely really into avocado toast.