ah-shee-son v. inte. Pronounced: AH-shee-soYnn

Surprised by something; overwhelmed

excited; very happy
Example 1:
JaJa: Dude, new episode of CSI: Miami is on
GenGen: Ah shee son!

Example 2:
JaJa: ...
GenGen: wat
JaJa: Halo 4 exclusively for PS4
GenGen: Ah shee son.
by Rodolfo S.J, October 17, 2006
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