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1. fat-finger
to finger a fat girl
I love fat-fingering my chunky girlfriend, it is soo fun.
2. fat-fingering
Pressing the keys on a cell phone, radio, or computer keyboard and getting improper results because your fingers have hit more than one key at a time. A common problem for those of us with pudgy fingers.
I can't use that cell phone. I keep on fat-fingering the buttons, and I keep on getting wrong numbers!
3. FAT
The technique of fingering a girl while eating her out.
Finger and Tongue = FAT
FATing
FATted
She started to moan as i was FATing her pussy
My girlfriend loves when i use the FAT technique
4. fat finger
reference by apple tech support when users of an iPhone can not use the keyboard to type in phone numbers or passwords correctly. to make light of the small keyboard being the problem.
yeah i fat fingered a lot the first month i had my phone.
5. fat finger
Slipping one inside a chubby.
The movie was too quiet to unzip in the cinema so I had to resort to fat fingering my date.
6. three finger
Pronounced t'ree Finger - using your thumb, pointer and middle finger to hold a joint or a blunt, hence three fingers (two and a thumb). Usually used when you're smoking a fat one with some buddies.

Can be used as a adjective or verb.
Dude 1: Dude pass the joint
Dude 2: aight its a fatty, im three fingering it
Dude 1: shit my moms coming up the stairs...
7. rusty baker
Fingering and or masturbating while you have rust on your hand.
"Man I just did a rusty baker to this fat chick."
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