The relevant lines say:
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
Though the word "reeks" suggests an unpleasant smell in modern English, it usually did not in Shakespeare's time. He used it to mean "exudes" or "emanates". Here, then, he is likening the mistress' breath to a scent - one which is less delightful than some, but is not necessarily unpleasant.
The mistress' breath in Sonnet 130 is likened to perfume in the opening line: "My mistress' eyes are nothing like the sun; Coral is far more red than her lips' red; If snow be white, why then her breasts are dun; If hairs be wires, black wires grow on her head."
My mistress' eyes are nothing like the sun;
Coral is far more red than her lips' red;
If snow be white, why then her breasts are dun;
If hairs be wires, black wires grow on her head.
I have seen roses damask'd, red and white,
But no such roses see I in her cheeks;
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
I love to hear her speak, yet well I know
That music hath a far more pleasing sound;
I grant I never saw a goddess go;
My mistress, when she walks, treads on the ground:
And yet, by heaven, I think my love as rare
As any she belied with false compare.
A bad smell.
The line is, "If hairs be wires, black wires grow on her head."
An example of hyperbole in Sonnet 130 would be "And in some perfumes is there more delight / Than in the breath that from my mistress reeks." The comparison of a mistress's breath to a foul smell is an exaggerated and intentionally unrealistic statement for effect.
Shakespearean sonnet #130: My mistress's eyes are nothing like the sun
Sonnet 130
ugly
black wire
Imperfect. Ugly
The blush that accompanies a rose
Shakespeare says: 'My mistress's eyes are nothing like the sun'
These lines from Shakespeare's Sonnet 130 are an example of paradox. The speaker is using a paradox to show that despite the unpleasant comparison of his mistress to perfume, there is still something delightful about her. The use of paradox adds complexity and depth to the speaker's feelings.
In sonnet 130, the speaker mentions that his mistress's cheeks are not as red as coral. He is highlighting the honesty in his love by comparing her to realistic, ordinary things rather than using exaggerated, flowery language.