1 definition by Tired. Just. Tired.

When you get a younger sibling, you have a 90% chance of the devil swapping it out with one of its minions. The other 10% of babies passed the devil's vibe check and was able to stay. These few specimens are the rare case of a well-behaved kid. If you have one, consider yourself lucky.
Kate: I have a younger sibling now!
Amy: so do I!
Kate: wtf you are my younger sibling
Amy: *sweats nervously*

Kate: The hell?! Mom! The baby's sweating, and its flooding the kitchen!
by Tired. Just. Tired. January 25, 2020
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