A term to describe the bulge of ones pecker while wearing a speedo.
Check out my Bird, my Bird is amazing. Check out this Bird this Bird in the Cage.

Look at that old mans Bird in the Cage.
by Burkenstock March 21, 2012
Get the Bird in the Cage mug.
A metaphor for when two people are in a relationship and Person 1 feels like they are a bird wanting to fly but are trapped inside of a cage (aka: Person 2).

It is basically a great way of telling someone you want to break-up due to your animalistic nature of being wild and free and not wanting to be tied down to them.
Anne: "Ricky, I'm feeling like our relationship is based off the Bird and the Cage theory.
Ricky: "Wait, what do you mean?"
Anne: "I mean that I'm a bird and you're a cage; I just want to fly."
Ricky: "Oh... *sobs uncontrollably*
by MrPringle007 September 24, 2014
Get the The Bird and the Cage Theory mug.
When someone's chest is in lack of muscle. Very skinny person, to the point, you can see his/her ribs.
You need to pump that bird cage you.... You are a weak private and you need to pump that bird cage of yours.
by Spc Lopez July 11, 2010
Get the Bird cage mug.
A shelf, or part of a shelf, in a supermarket, where reduced goods are displayed.

So called because they are going "cheep cheep"!
Customer Service Assistant: "Madam, you'll find baked beans going cheep for 5c a can, the bird cage"

Customer: "Bird cage?"

CSA: "Because its going cheep cheap!"
by Kerb November 27, 2004
Get the bird cage mug.
When one is accustom to residing in a confine space and suddenly finds themselves in a overwhelmingly larger space and in-turn becomes uncomfortable and hesitant to expand into their new found larger area.
Hey girl, did you hear that Magdalena is now living uptown? She was so used to living in that tiny 450 sq studio that she's now so freaked out about all this new found space and barely even leaves the bedroom. Wow she definitely has a case of the Bird Cage Syndrome.
by RI Ave Stalker November 26, 2013
Get the Bird Cage Syndrome mug.