2015/03/25 [HYL 04-02] Chopper

[AmigaDragon]

But who is Jerry?

[llearch n'n'daCorna]

But who is Jerry?

Jeremiah.

Presumably not Jeremiah Scudder, though.

[ZacAttac21]

But who is Jerry?

http://project-future.xepher.net/strip.php?strip=360 Green-haired guy in the lower-left panel.

[Tapewolf]

Green-haired guy in the lower-left panel.

Jeremiah is still studying at SAIA at this point in time - but during the last century before Jakob graduated, they were roomies.

[AmigaDragon]

And this all means what to all the characters he says this to? Why would they care if some guy named Jerry gets mad?

[Tapewolf]

And this all means what to all the characters he says this to? Why would they care if some guy named Jerry gets mad?

In this instance, it's not much more than a vague threat.  Heck, Jakob is mostly talking to himself at this point.  Writing-wise it's a callback to the last time he name-dropped Jerry, which had a very specific meaning to Erich at the time.