to dye blonde
The phrase 'teñirse de rubio' is a Spanish term that translates to 'to dye blonde' in English. This is usually used in the context of changing one's hair color. In Spanish, 'teñirse' is the reflexive verb for 'to dye', 'de' means 'to' or 'of', and 'rubio' refers to the color 'blonde'. Therefore, if someone says they are going to 'teñirse de rubio', they are saying they are going to dye their hair blonde.
Juliet wanted to dye her hair blonde to change her appearance.
This sentence is stating that a person by the name Juliet wanted to change her appearance by dying her hair a different color specifically blonde.
He often thought about dying his hair blonde, but he never dared to do it.
This sentence is telling us about a person who often contemplated changing their hair color to blonde but never had the courage to actually go through with it.
After she dyed her hair blonde, she immediately regretted it.
In this sentence, it is shared that a person dyed her hair blonde but as soon as she did, she felt regret about her decision.