A meme requiring almost an impossible knowledge of internet lore and underlying meme context to understand. Even with a detailed explanation, no normal person will ever understand the Tier 4 Meme.
When one encounters a Tier 4 meme and comprehends it their minds are blown.

Typically seen in group chats. Sent only from the group know it all. Often to no response.
Stop sending tier 4 memes. They are fucking with my head.

Jared needs to stop sending tier 4 memes in the work group chat. People are starting to think he's weird.
by CopeSnuff October 16, 2021
someone that would give their soul to a streamer thats a 3/100 on a good day for the smallest, measly thank you.
Tim: Did you hear about Kane? He died.

Rashad: Nigga gave his soul to some ugly ass streamer.

Tim: Lmao he's a tier 4 sub.
Does not exist.
Random_user_A: hey man you're making some great content, I'd love to go above and beyond and sub to you at tier 4, but don't have enough money yet :(
Random_user_B: Tier 4 sub? The highest is tier 3
Random_user_A: yeah thats what I meant
Random_user_B: I mean it's up to you if you're feeling it, just note that tier 3 has little to no perks
...
Streamer: *reads chat* "Oh thank you Random_user_A! But you really don't have to if you can't"
by UwUltimateDoge September 2, 2021
someone that would give their soul to a streamer thats a 3/100 on a good day for the smallest, measly thank you.
Tim: Did you hear about Kane? He died.

Rashad: Nigga gave his soul to some ugly ass streamer.

Tim: Lmao he's a tier 4 sub.
A go to expression for someone or something that spoils the fun / ruins the party through poor decision-making / choices or through total incompetence.
Mikey G turned down the tunes and it totally Tier 4'd the night so we all left to get chips and drinks.
by Georgivs Sofcox December 21, 2020