When you're being horny (especially around friends) and as a result shame ensues.

Someone of Arabic descent since most their land is covered in sandy deserts and they resemble black Africans. Mediterrean Europeans, Iranians, Turkish, Caucus people, Hebrew people, and SouthCentral Asians cannot be sandniggers because most of their lands or not sandy deserts and they are white Caucasians. this word is often used by westerners to refer to A-rabs.