fridge amnesia

The act of checking ones fridge for nibbles/munch not finding anything checking the entire kitchen then going back to fridge hoping something has appeared.
This act is most likely performed several times before settling for a less favourable snack of giving up entirely.

Lillian: what's Agatha doing?
Doris: she has fridge amnesia again.
lillian: that's forth time tonight
Agatha : damn it ill have to have an apple