Jaffacaking 

It means to get on someone's good side my being nice and friendly to them.

Jonnys mum said,"don't try and get round me by jaffacaking me"

Jaffacaking by Rogers lambs June 4, 2017

Jaffacaking 

A sex move involving two humans in a hugging missionary position, a black person on top and a white person on the bottom. However before engaging in coitus, a jar of orange jam is spread on the white persons torso, mimicking the construction of a McVities orange Jaffa cake.

1: Honey! did you get the orange jam?
2 : No sorry honey i forgot.
1: Damn, then we wont be Jaffacaking tonight.

Jaffacaking by AimesVetch December 15, 2019

Jaffa caking 

When a guy bends over and inserts sponge cake into his own arse, he dips his dick in chocolate and uses this to jerk off. Just as he is about to cum he shoves an orange in his mouth to muffle the scream. Once ejactulated then fart out the sponge cake.

Omg dude I Was Jaffa caking myself last night, my mums Victoria sponge flew everywhere

Jaffa caking by Jaffacakemaster October 10, 2019