The first nice, sunny, warm day of the year. When the girls all begin exposing their cleavage (aka T's). Also known as one of the happiest days of the year.
Portmanteau combining a name, Donald Trump, and neologism, Z-day. Derived from the notion Trump winning the 58th US presidential election is parallel to a fictional zombie apocalypse.
Dude, do you seriously believe Trump will make it to the White House? FUCK NO! But, I renewed my passport so I can evacuate to Canada if T-day happens.