An anachronistic corruption of the phrase "word to the mother", which was a popular reference to Africa or "The Motherland" during the late 1980s
Afrocentric movement. While the replacement of "the" with "your" effectively obliterated the term's Afrocentric roots, it continued to be used in the same manner, that is, to express agreement. Alternatively, the "your" could take on sinister connotations, implying that speaker was sexually intimate with the listener's mother, as in "
say hi to your mom for me", or, in keeping with the whack terminology, "props to your mom, she's da bomb". Finally, the phrase might mean nothing at all, and be used to
ineptly feign street cred, in the style of Vanilla Ice.