Big Snot 

Semen.

I left a puddle of big snot on the hotel bed for the cleaners to earn their crust.

Big Snot by Stagmanic September 16, 2009

It's not big and it's not clever 

A coded message to a friend meaning, that the friend is doing something that they will come to regret....probably the next morning when they sober up.

Jon, ffs it's not big and it's not clever. That bouncer is watching. Please don't get us thrown out.

It's not big and it's not clever by gav-wan July 12, 2018