Definition of sheiks:
(n) :
The leader of an Arab village, family or small tribe.
(n) :
(some Arab Gulf countries) An official title for members of the royal family as well as some prominent families.
(n) :
An Islamic religious cleric; the master of a Sufi order.
(n) :
An honorific for specialists in spirituality, for example in Sufism.
(n) :
(slang) An Arab, especially one dressed in traditional clothing.
(n) :
(slang, archaic) A romantic lover.