Well the 'Big Knife' reoccurs several times, in many different places. Its first appearance is in the 'A guy with a big knife' painting, from the
StrongBadEmail/i love you. It also returns in
StrongBadEmail/army.
It is also being held by the snake on the
Strongbadia flag.
Strong Bad also refers to the Big Knife in
StrongBadEmail/band names, where one of the band names he suggests is "Bigg Nife".
Strong Bad also asks the cheat if he could borrow that Big Knife via instant messaging in
StrongBadEmail/marzipan
The art test you must complete to get into
Crazy Go Nuts University has a picture of a "guy w/ big knife" that you have to draw.
Also,
Stinko Man can be seen holding the knife in
StrongBadEmail/japanese cartoon.
He also throws it at
Strong Sad in the
Theme Song Video.
Early on in
Everybody to the Limit Strong Bad is holding it again.
Also,
Strong Bad uses the knife to cut a hole in the couch to hide his Aztec gold in
StrongBadEmail/couch patch
In the toon Wheres The Cheat, there appear to be big knives in
Marzipan's kitchen