adj. When a situation is absolutely and unthinkably bad in some way. Stemming from the words gash (meaning extremely sucky and astronomical (meaning very high in quanity).
matt: "The club will be shut after tonight and will not open for months..."
ollie ken: "This is gashtronomical!!"
ollie ken: "This is gashtronomical!!"
by Olly J October 1, 2006