s- prefix it’s, especially preceding a word spelt with an “n”, such as not snot and nice sniceUK,1917 A slovening that allows the childish to say SNOT
We cannot have that behaviour in this establishment / ’snot worth it Mike, just leave it / Don’t touch me, ’snot worth it[.] — Mike Skinner, FitButYouKnowIt, 2004