pour the cobs on 

According to A Way With Words, a podcast on PBS, cobs has sometimes been used to define a small or hard object such as testicles. When using the exclamation it can also mean “give it a little extra juice”, or “give it a little more testicular fortitude”

42:25, Pants on Fire, 16 October 2017

As the timer was running low and the home team was down by 1 point, a fan yelled “pour the cobs on”.

As Jill approached climax, in order to get her partner to increase intensity she yelled, “pour the cobs on!”

Instead of his friend consoling him, jacks friend told him to “pour the cobs” on and get over his ex.

pour the cobs on by Heyystolleyy October 20, 2017