First its three fingers for the first 3, then your thumbs and pointer fingers make the O for 3O, then it ends with your other three fingers making 3O3 like 3OH!3.....3OH!3 FoReVeR BiTcHeS<333.....
That's the name of a band.... They sing 'don't trust me'
Well. Three finger and then "o" and then over again three finger