fostinas 

a pair of women's eyeglasses or sunglasses with round lenses, characterized by appearing much too large for the wearer's face.

She really needs to get contacts--those fostinas of hers are hideous.

fostinas by Jeremy Ball September 2, 2008

Fostinsons 

One of the most random but brilliant tasting drinks ever. Just glug a bit of robinsons fruit and barley in some fosters and there it is. Was discovered when I was feeling curious. It works really well with strongbow aswell.

Hey man, you tried the fostinsons yet?

No, what's it like?

Friggin awesome, it's like being blown off your feet by a koala with a strawberry firing elephant.

Fostinsons by Br4d93 June 5, 2009