It means that you are going to
go over to your engineering study partner's
house and fuck with Matlab
running in the background, cause plotting takes way too long and you should have used matrix operators instead of for-loops.
Brad: "Hey
Julia wanna come over for matlab and chill"
Julia: "Sure I'll pick up the condoms"
Brad: "Wait I thought we were just gonna do some Wind Chill Computation..."
Julia: "Matlab and chill means we fuck, dumbass"
**obviously Brad is NOT an electrical engineering undergraduate