Tickled Pink American adjective
To be delighted or pleased
I was tickled pink to be here.
She was tickled pink when she got a diamond ring from her boyfriend.
Her parents are tickled pink when their daughter won the first prize.
The kids were tickled pink about their Christmas gifts
To make someone feel more confident or happy, especially when they thought that they can't achieve what they want
Happy or cheerful; in a good mood
To smile broadly
The idiom was used from 1900s in America. It alludes to one's face turning pink because of laughing so hard when they are tickled
Used to allude that the last force, problem or burden which is seemingly minor and small causes a person, system or organisation to collapse or fail
Her husband's violent act last night was the straw that broke the donkey's back and she left him