This word can be used in several ways.
1.) To desribe how much you enjoy spam
ham.
2.) An sarcastic
way of saying your pissed about your junk mail.
3.) Just another way to say "Cool" or "
Awesome".
1.) Wow mom, this Macoroni and Chesee with spam is spamtastic!
2.) Matt opens his e-mail to find 4,294
new messages in his inbox. Sarcasticly he utters "Spamtastic".
3.)
Kyle: I just found $100 under my
bed!
Matt: Spamtastic!