Riveting as Rosie, pockets full of posies
Given to the mother of the deceased
Rosie the Riveter was a propaganda symbol of women who were working in factories during World War II while their sons were dying at war — Lupe is comparing these women to moms in the ghetto, while suggesting that his own rhymes are “riveting,” i.e. highly compelling.
“Pockets full of posies” references the nursery rhyme Ring a Ring o'Roses, which is widely (though mistakenly) thought to comment on England’s 1665 plague, i.e. the Black Death. If Lupe intended this it would be appropriate, as this set of lines refers to “black death” in the ghetto, and its effect on the families left behind.
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