A burger that comes with kimchi
"Hey Bob, what's the burger of the day?" "It's the You're Kimchi the Best Burger, you should try it!"
Get the You're Kimchi the Best Burger mug.

Second

The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom (at 0 Kelvin).
Get the Second mug.

Silentil Night Burger

A special Christmas burger that comes with lentils
"Hey Bob, what's the burger of the day?" "It's the Silentil Night Burger, you should try it!"
Get the Silentil Night Burger mug.
From Bob's Burgers: a burger that comes with succotash
"Hey Bob, what's the burger of the day?" "It's the I'm Gonna Get You Succotash Burger, you should try it!"
Get the I'm Gonna Get You Succotash Burger mug.
A burger that comes with Muenster cheese
"Hey Bob, what's the burger of the day?" "It's the I've Created a Muenster Burger, it comes with muenster cheese!"
Get the I've Created a Muenster Burger mug.
A burger that comes with fingerling potatoes and is flavored with bay leaves
"Hey Bob, what's the burger of the day?" "It's the Fingerling Brothers and Barnum and Bay Leaves Burger, you should try it!"
Get the Fingerling Brothers and Barnum and Bay Leaves Burger mug.