Line 72 I will bite thee by the ear . . .
this friendly threat is still used in Rome: Te dò 'n mòrzico su 'na recchia!
Lines 82-3 . . . now art thou Romeo; now art
thou what thou art by art . . .
the problem is, he must "refuse" his name and "be new baptiz'd"; from now on, his name "is no part of" himself, as stated in his dialog with Juliet in Act II, Scene ii
Line 157 . . . if you should deal double with her
Freudian projection: the Nurse will "deal double" with Juliet
Lines 199-200 . . . And she hath
the prettiest sententious of it, of you and rosemary
something having to do with "rose" (rising) and "marry"?
Line 74 Must climb a bird's nest . . .
like a snake, not by chance
Lines 75-6 I am the drudge, and toil in your delight;
But you shall bear the burden soon at night
the Nurse as Queen Mab, see Act I, Scene iv, especially lines 54, 92-4