Combination of cum, shit, and grahm cracker thrown on a womans face.
S'moreing is while getting a blow job sitting down and you are about to cum, lift up and shart on her face, immediately after, cum on her face. Have a grahm cracker pre-staged, smash it up and throw it onto her face. After she recovers ask her if she wants s'more.
by Wally0861 June 12, 2012