Probabli 

conjuction word combining "probably" and "why".

Him: my head hurts
Her: Why?
Him: because i hit it on a wall
Her: that's probabli

Probabli by AJacks43 May 30, 2018

Probabilititties 

The likelihood of seeing a titty.

What do you think the likelihood of this top staying on all night is?

I’m not sure but the probabilititties are high.

Probabilititties by Jefferson Lovely August 7, 2020

probably nothing

This phrase is often used sarcastically. It probably is something.

Ethereum made 5x the revenue Bitcoin has made this week. Probably nothing.

probably nothing by undertheradar May 14, 2021

Probably my Biceps 

pronoun- antecedent is always "biceps"
Expression used for the sake of being used; has lost most of original meaning
Origin- Speculated to have been coined by Theodore Roosevelt, as he was known to have an extremely well developed upper body.

"Knock Knock"
"Who's there?"
"Probably my biceps"
*swooning and possible copulation ensues*

Probably my Biceps by Jessetotallydidnotmakethis February 8, 2013

You're Probably Right

A phrase used to dodge the blame and embarrassment associated with getting an answer wrong.

Jack: "I know that girl her name is Cindy"

Joe: "She's my neighbor, her name is Angela"

Jack: "You're probably right"

You're Probably Right by Therightwordsareeverything January 28, 2011

Probably cancer 

Have an odd spot somewhere on your body? Have a lump that you can't explain? Headache, even? Skip the rational thinking, it's probably cancer.

Mike: Hey, Jim, what's that thing on your arm?

Jim: Probably cancer.

Probably cancer by Lord of Ears December 27, 2008

Hate You Probably 

The act of befriending celebrities on Twitter to secure famous birthday wishes.

I Hate You Probably'd TPain, he's totally going to wish me a happy birthday next week.

Hate You Probably by Princess Muffintop April 18, 2011