The Brief: Vibe check memes are jokes about checking someone's "vibes," sometimes in a violent manner.

DEEP DIVE
Hey Yo, Vibe Check!
Like the term vibes, the “vibe check” phrase is a ubiquitous and vague reference to intangible auras and atmospheres. The basis of this meme is a joke about simply “checking the vibes” that a person is giving off. Often, these memes make fun of the somewhat new-agey way in which people talk about “vibes.”
These not-so-serious memes are similar to other “hey, yo check” formats in which they highlight and “check on” a certain thing, in this case, vibes. If this meme seems like an inside joke that you weren’t let in on, that’s because it is. Much like the I’m Baby or Let’s Get This Bread meme phrases, there’s no exact known origin or real point to this meme.
Violent Vibe Checks
A common variation of this memes involves someone saying “vibe check” and then proceeding to attack someone or otherwise enact slapstick violence against them. The humor in these memes comes from the dissonance between someone doing a friendly-seeming “vibe check” and then suddenly acting violently.
Vibe Check from dogelore
Check Your Vibes
Let these memes be a reminder to do your own vibe check. How are your vibes? Are they good? Bad? Flowing? Blocked? Thanks for checking on those vibes and keep on vibing.
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vibe check
*klonk sound effect pic.twitter.com/HhI3TStQRS— SuperWiiBros08 (@PAMVLLO) October 8, 2019
TSA stopped me for a vibe check
— falak (@FalakAbbasakoor) October 8, 2019
interviewing is just a rly long vibe check
— emmad (@emmadmazhari) October 10, 2019
sorry ur vibe check bounced
— redd’s apple ale fan account fr (@kujojacobo) October 10, 2019
Vibe check *pulls you in for a hug and lets you know how valid you are*
— Minecraft_Miku! (@miku_minecraft) October 6, 2019
I’m about to end this man’s whole career…
Vibe check! from KarmaRoulette
Vibe check from tumblr