2. A bisexual bear.
3. A bear that has been magnetized.
4. Any combination of the aforementioned definitions.
2. Ha! That bipolar bear can't decide whether to sleep with Jimmy or with Julie.
3. Ha! That bipolar bear is stuck to that piece of metal!
4. Ha! That bipolar bear is stuck to a piece of metal and can't decide whether to gnaw itself out and sleep with Julie, or sit around thinking about Jimmy.
Pengui 2 - That is Billy, the Bipolar Bear. He is up there every other day. He must not have taked his Bear-zac today.
kasey: u mean that other bear?
kasey: but hes a bear like us
other bear:*spazzes out*
john: i knew he was a bipolarbear
2. (n) a Bi-sexual polar bear
"Oooh there I've spotted the rare bi-polar bear. Bi people are greedy. It's like pick a damn side and stay there."