just standard rap braggadocio shit imo
i just think the title and hook were EXTRA lazy, especially for a rapper of Jayz's caliber
as far as this drake song
i may be reaching but i think the point is that this woman is his forever. she has a man currently but it doesn't matter cause when drake comes thru to see her he comes thru on his Wu Tang , It's Yourz, meaning the pussy is his regardless
so wutang "forever" would describe their relationship in a poetic sense
looping the It's Yours wu sample under the story ties everything together and makes the connection clearer