"oh and" is the new "p.s."
When used properly, "oh" corresponds to "post" and "and" corresponds to "script".
One may add a second "oh and" by simply putting a second "oh" in the beginning of the statement to designate another
afterthought. It should read as follows "oh oh and", which would
correspond to "post
post script".
In context it should read like the following example:
hey man go check out my new
epic youtube
vid!
oh and dont forget to
rate it!
oh oh and make sure you tell your friends!!