What does Amscayed mean?

Answer 1

it means scammed

Answer 2

It is pig Latin for Scram.
More on Pig Latin from Wikipedia: http://en.wikipedia.org/wiki/Pig_Latin
The usual rules for changing standard English into Pig Latin are:

For words that begin with consonant sounds, move the initial consonant or consonant cluster to the end of the word and add "ay." Examples:

button → utton-bay
star → ar-stay
three → ee-thray
question → estion-quay
For words that begin with vowel sounds (including silent consonants), simply add the syllable "ay" to the end of the word.
eagle → eagle-ay
The most common variation in Pig Latin is to replace the "ay" in the second rule with other suffixes such as "way", "yay", or "hay"; thus, "eagle" → eagle-ay, eagle-way, eagle-yay, or eagle-hay, depending on the rules. The "ay" formulation is probably the original, with the variations arising due to sandhi. Another variation is to take only the first letter and put it at the end, and add -ay, so "they" becomes "heytay", rather than "eythay" These variations may also be geographical.