Age idioms
Come of age
to reach a point of maturity
I could eat a horse
Very hungry
Head over heels
to totally fall for someone
Blue-eyed boy
The favorite one
Girl talk
Something only girls understand
No spring chicken
Someone who is no longer young
A flash in the pan
Someone who has brief fame or popularity
To carry a torch
to still love someone even though it's over
Boys will be boys
Bad behavior that is accepted as being ok for boys
The girl next door
The ideal girl to date or marry
Age before beauty
Older people should be allowed to go first
Stir the pot
To deliberately make trouble
Old flame
former boyfriend or girlfriend
All work and no play makes Jack a dull boy
A boy who is too serious
Diamonds are a girl's best friend
Some girls prefer material things like diamonds to people
On the wrong side of 30 or 40 or 50 or 60 or...well you get it
Old
Your goose is cooked
Someone who is done
Puppy love
A romance between very young people
A boy scout or goody two shoes
A boy who always does everything he supposed to do
Girls are like buses
There is always another girl to date
One foot in the grave
Appearing close to death
Half-baked idea
A stupid plan
Butterflies in the stomach
A nervous feeling when you like someone
Mama's boy
Boy who cries a lot and is babyish
Cry like a little girl
To get really upset like a child