"A collection of insults 16" joke

Solid concrete from the eyebrows backwards.

Some Assembly Required.

Some bugs in his software.

Some drink from the fountain of knowledge, but he just gargled.

Some of her inodes have nodded off.

Some pages missing.

Somebody lend her a quarter to buy a clue.

Somebody put a stop payment order on his reality check.

Someday when she's younger...

Someone blew out his pilot light.

Someone else is doing the driving for that boy.

Someone let the air out of her lock.

Sort of like an inverse Einstein.

Source code is missing a few lines.

Speaks math/FORTRAN better than English.