The act of pressing you head now onto your neck to give the illusion of having multiple chins/being overweight. The term and practice was coined by TikTok legend Cookie King, a well-known TikTok model.
"Wow look at Cookie King, he's meltmaxxing for his video!"
When someone's favoring an event not because they're in favor of it, but because it benefits them
Jade: Idkdude, it feels Mike is maxmaxxing our relationship
Dave: maxmaxxing? wtf is that
Jade: Like he's making me feel good for the sole purpose that I make him feel good, and not because he's actually into me