What is the expanded form of YAHOO!

Full form of Yahoo is YET ANOTHER HIERARCHICAL OFFICIOUS ORACLE

Yahoo is an Internet service company, which provides various services like Search Engine, Yahoo Directory, Yahoo Mail, Yahoo news and more

What is the full form of INRI seen on Crucifix images?

You might have seen the letter  "I.N.R.I" on top of crosses or Crucifix images. INRI  represents the Latin inscription  "Iēsus Nazarēnus, Rēx Iūdaeōrum" , which in English means