Four thumbs 

When you type so fast it looks like you have 4 thumbs
Like in anime/manga, they put multiple fingers to show the speed of the characters typing (with an addition of movement symbols like "《" "//" "=" ect...)

Person 1: typing
Person 2: "do you have Four thumbs or summ"

Four thumbs by Ramen is gr8 June 7, 2019

I'm going to need four hands! To give those titties four thumbs down! 

A quote spoken by Dave Chappelle acting as Rick James on Chappelles Show in the skit, "Charlie Murphy's True Hollywood Stories".

"I'm going to need four hands! To give those titties four thumbs down!"

I'm going to need four hands! To give those titties four thumbs down! by Supermajic September 10, 2005

mother thumb and her four daughters 

a guy's hand, as referred to when he uses it to make his special sauce.

Why go out rent a ho when you can make love to Mother Thumb and her four daughters for free?

mother thumb and her four daughters by colonel cheesemonkey June 11, 2007

Old Lady Thumb and her Four Daughters 

Rosy Palm aka Madame Thumb and her 4 slutty daughters aka your whacking hand. Self-gratification. Masturbation. See wanking.

I'm not desperate, I got a date tonight with Old Lady Thumb and her Four Daughters.

Old Lady Thumb and her Four Daughters by ridiculously anonymous January 12, 2011