The later part of Sunday when one is busy working to be ready for Monday. Smonday is a very taxing period of time, usually involves no sleep the night between Sunday and Monday. Involves large amounts of caffeine intake. More relevant to business executives and students.
Example 1:
"I can deal with Monday but it's Smonday that kills me."
Example 2:
Boss: "Venkateswaran, lets have the reports ready on my desk by Monday morning. And enjoy your weekend buddy!"
Venkateswaran (to himself): "Enjoy my weekend my &*%! No sleeptwo Smondays in a row, damn it"
The minute that the sun appears, Sunmonkeys put on their shorts, parade around in sunglasses and try their very best to get a tan. They are usually the first ones to get sunburn.
Similar to a 'sun worshipper'.
"It's so sunny! Quick, hand me the suncream!"
"OMG, you're such a Sunmonkey"
An extra day to a weekend. This day would reside between Sunday and Monday and tends to be a needed day of rest after a fun and busy weekend. It may also refer to a non-productive Monday because of a busy weekend.
"I really need a schmonday after this weekend trip because I can tell its going to be a grundle of a day."