You meet your best friend for lunch and they order the most expensive meal on the menu. The waiter hands you the bill - when it comes time to pay - your friend says, "I lost my debit card" or "I'll catch us up next time" or "I am a little short" or "You can afford this." We all know of them - This is an Excuserist
to think of an excuse and the answer to any question which may arise from that excuse.
basically, making sure you're excuse is a full and matching outfit. not an evening dress with a backpack you grabbed at the last minute.
'so you ready for college today?'
'yeah...i've just got to excuserise before Psych hand in'