Originally someone who made huge plans to grind a years worth of work over summer but that didn't go through so they became jokeman and started copying work supported by a large network of people who both supply and use the supplies. In particular, copying large amounts of work without understanding anything is called alimoing.
Alimo: Can you supply the analysis sheet I was doing it last night and passed out
Supplier: I got u fam but make sure you learn it properly later
Alimo: Yea I'll do it over summer along with Groups, VC, DEs, Probability, GRM, Markov Chains, Sleeping 9 hours a day, Gym every day, learning life skills . . .