An
expression of hello in a drunken matter- an
abbreviation of the sober hello 'Hi
How Are You?'
An expression of awe over some really hot guy/girl
As noun-(1) Hihowawrya can be used as a noun in relation to someone scoring the night before.
examples-
Friend drunk and sees other friend 'HIHOWAWRYA!!!'
Other friend responds 'HIHOWAWRYA'
As
expression of awe- Did you see that hot guy/girl. HIHOWAWRYA!!
As noun- Did ya get some hihowawrya
last night?!