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
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
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.