allude is the act of using a word or phrase that has been used before and is well-known and can
readily identify a situation. Most urban terms are actually
allusions to past literature, songs, or iconic
pop culture.
"
et tu Brute" is an
allusion to
Ceasar but is used to describe to a friend how you can't believe he stabbed you in the back
"glitch in the system" is an allusion to The Matrix but describes a de-ja-vu