A sandwich short of a picnic

[hermit]

Not playing with a full deck...

A couple cards short of a hand

[xchic]

Thank you all very much

[laepelba]

I found these on a website (some are duplicates of ones already offered):

a sandwich short of a picnic
a few beers short of a six-pack
one brick short of a load
a few fish short of a hatstand
not playing with a full deck [of cards]
to have bats in the belfrey
to have kangeroo loose in the top paddock
as crazy as a sack full of ferrets
out to lunch
as nutty as a fruit cake
as mad as a hatter
the lift doesn't go to the top floor (my personal favorite!)
the lights are on, but nobody's home
to have a screw loose
not the sharpest knife in the drawer
not hitting on all six cylinders

[bobjenkins]

To lose one´s marbles

Bob´s lost his marbles

a few fish short of a hatstand No entiendo eso

[Rusty]

@Bob: That means you haven't lost your marbles.



The same kind of question was asked back in March 2008. One site I posted in that thread contains over 200 such sayings. Give 'em a look.

[ROBINDESBOIS]

I like " LE falta un hervor"

[Ambarina]

Le falta una garcillada.