A word with a wide range of meaning. Can mean anything. Meaning usually comes from context. Can also be used as a greeting and because of its distinctive sound (pronounced like "how" but only slightly retarded) can be used to locate friends in a crowd.
HHHHOOOOUUUUUWWWW (in a crowded room looking for friends)
houw (when passing by a friend in a hall way. Good to use in school.)