The term "siahnextupp" means a basketball player whose name is Josiah, is "next up" for success in life or whatever they are dreaming of achieving.
"Damn siahnextupp?!"
"Oh, his Snapchat username is siahnextupp?"
"Oh, his Tiktok username is siahnextupp?"
"siahnextupp is goofy."
"Oh, his Snapchat username is siahnextupp?"
"Oh, his Tiktok username is siahnextupp?"
"siahnextupp is goofy."
by Danielnextupp November 2, 2023
Get the siahnextuppmug.