A toned-down, less rude version of "shut up". Often used when someone is chatting wass and needs silencing for the good of all those in earshot. As with the phrase "shut up", it often comes after an exclamation such as bruh, oi, fam etc.
Nigel:" Bro I'm telling you this whole Coronavirus thing is a 5G government cover up! I saw it Faceboo-"
Edward: "Yuttups."
Nigel: "Na naa naaaah listen yh it's a proper scientif-"
Edward: "Oh yu'ups."
Nigel: "Naahhhh g truss I'll send you the link you can look at it yours-"
Edward: "Oi someone PLEASE tell my man to yuttups!!!"