I believe this is an EXTENSION
of the death metaphor.
The Big Bang Theory Season 2, Episode 8
I did have a shot with the Lisatronic,
but the EXTENSION cord wasn't long enough.
The Big Bang Theory Season 6, Episode 5
An EXTENSION of his ability
to leap buildings...
The Big Bang Theory Season 1, Episode 2
l asked for an EXTENSION
from the power company. Why?
Breaking Bad Season 4, Episode 3
That means it's better than his research,
and by EXTENSION, of course, yours.
The Big Bang Theory Season 4, Episode 3