Does Anyone know what this pre work out lotion stuff for your abs is called?

[Lori Pre]

Its like a thick black sludge in a yellow bottle and I believe with a black cap. My brother used to use it but he's since forgotten the name (I used it a few years ago) and I never payed attention to the name. He claims he got it from GNC and your supposed to slather that junk on before an intense ab work out. Does anyone know the name of this stuff? It was amazingg