he is an boy vs he is a girl

Some examples from the web:

• He is such an honest boy that he never tells a lie.
• Boy meets boy, boy loses boy, boy ends up with analyst.
• - Boy, boy... ...very tall boy... very tall boy.
• Dylan... Boy, boy, boy, boys.
• Black Country boys and Brummie boys are on the same side again.
• Hakam was just a boy like any other boy.
• That boy is not your errand boy.
• I was once a boy, and like all boys...
• And then the boy went to sleep like little boys should.
• That boy robs other boys, steals their phones.
• For the boy I was and boys that saw.
• Boy, the bad boys of a cappella have just gotten badder.
• Because it was pretty boy-on-boy heavy at the wedding.
• Looks like lonely boy has a baby boy.
• Boy, I wish haley would date some other boys.
• Nothing I like better than boy-on-boy foreplay.
• Girls are girls and boys are boys.
• Lake House Boy Toy. Sunglasses Hut Boy Toy. Ice Dancer Boy Toy.
• Boy meets girl, boy likes girl boy finds out girl is surrogate mother's illegitimate half-sister.
• I'm-I'm kind of taking a timeout from the whole boy-meets-girl, girl-dumps-boy, boy-doubts-his-worth as-a-human-being thing.

Some examples from the web:

• Actually, no, really, he's... he really... he is a girl.
• I just hope whoever he is, he deserves a girl like you.
• He is everything a girl looks for in a guy.
• He is being such a girl.
• The only thing that Joong Won knows is that he likes a girl named Cha Hee Joo.
• What he needs is a new girl.
• He is in love with a girl he works with who's engaged.
• I can't tell you how happy I am, that he is marrying a nice girl like Jenny Sue.
• Is he a girl or is she a boy?
• He is in love with a girl he works with who is engaged, so just cut me some slack. Please?
• There is nothing in this brochure about a girl-on-girl croissant.
• It's a girl-on-girl twist to your pregnancy fetish.
• But a girl needs her mother...
• His last relationship was with a girl.
• I definitely heard a girl's voice...
• Like an eighth-grade boy punching a girl.
• A girl born into fabulous wealth.
• The caretaker said a girl killed herself right here.
• Grown man contacting a girl this age...
• Misappropriating FBI resources to follow a girl.