Oxford period 

The optional period at the end of a final sentence, typically omitted in social media posts or texts.

"Mom! You don't need to use a period at the end of texts" vs. "Mom! You don't need to use a period at the end of texts." <Oxford period

Oxford period by Mr. Toe June 1, 2016

Oxford period 

The Oxford period is used in lieu of the Oxford (or serial) comma in a sentence, in an effort to make a sentence appear more profound or dramatic than it is. The Oxford period is often used on Tumblr and Facebook.

I'll check her sidebar bio to see what her favorite things are. It says, "Water. Fire. Wind. and Dirt." Nice, a list using the Oxford period.

Oxford period by Ceabelyo January 12, 2014