Shundar! (introduced via my youth group, no one is sure how it is spelled..kinda just means like Amen except you can use it on anything, like when you agree with someone, or someone makes a good call.) We also started a chant up
*sings to tune of thunderstruck* Shundar! ahhhaaaahaaaahaaahaaaaha Shundar! ahhaaaahhaahahaahahahhahahaaahaha Shunder! etc etc etc...
I say organised as "orjinised"
instead of Bibliography I saw "Bibibalogragraphy"
Pthamp, a word I made up years ago, meaning stupid.
And sometimes I just like speaking like a 3 year old, saying "th" as "f" and speak in a childish voice and stick my tongue out.
I have many more, will edit this post when i think of more!