Yuh Yuh Yuhhhhh was created in a mashup that was performed/recorded by Why Don't We. The mashup consisted of Gucci Gang and Ten Million. Yuh Yuh Yuhhhhh was said by Corbyn Matthew Besson, 1/5 of Why Don't We. Yuh Yuh Yuhhhhh means 'yeah, yeah, yeahhhhh.'
This is how it was preformed:
Gucci Gang, Gucci Gang, Gucci Gang, Gucci Gang
Corbyn: Yuh Yuh Yuhhhhh
Gucci Gang, Gucci Gang, Gucci Gang, Gucci Gang.
(just a snippet of their mashup rest can be found on their Instagram, @whydontwemusic )
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.