Hamsters kinda act like they're in middle school.
"Oh yeah, I do. That must be that girl Christina. She's such a hamster"-Marvin
2.) Noun, HAM-STUR, (See ninja) A cute little animal known for its sudden violent reactions to little children holding it. Hamsters have been known to kill at any impulse, even if there is no need for eminent death of the child.
2.) The hamster ate the nine year old's whole birthday party because someone dropped a spoon.