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1. to be sure of something (see: for sure)
2. to affirm an agreement
3. to tell the person to "suck it" when teamed with "nizzle"
1. "Did you pick up my suit at the dry-cleaners?" "Forshinizzle."
2. "Are you ready?" "Forshinizzle."
3. "I hate you! Forshinizzle my nizzle!"
by SweetE March 17, 2005
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