Posted By:
Andrew Parksumpteenth
adj : last in an indefinitely numerous series [syn: umteenth, umptieth]
ump·teen
adj. Informal
Relatively large but unspecified in number: umpteen reasons; umpteen guests.
[Slang ump(ty), dash in Morse code (of imitative origin) + -teen(as in thirteen).]
umpteenth adj.
http://dictionary.reference.com/search?q=umpteenth>
thanks Andrew (leon)