Sletiper 

pronounced slet-ipper

mix of sleepy and tiper (mix of tired and hyper)

Shelby was worn out from the long day and the coffee he was drinking was causing him to feel sletiper.

Sletiper by DurBrisingr and Lilshikachan April 11, 2008

Sletiper 

Pronounced slet-ipper

mix between sleepy and tiper (mix between tired and hyper)

Shelby was worn out from the long day and the coffee he was drinking was causing him to feel sletiper.

Sletiper by http://www.uzumakionline.com April 12, 2008