Full parental review of "Memory of a Memory" and "Hitman":
Marceline's ex-boyfriend, Ash, tricks Finn into magically removing the memory of them breaking up. Finn runs into various memories while exploring Marceline's head, including: One where Marceline's a little girl, playing doctor with a stuffed bear in the ruined wreckage of the world; another where Marceline picks her nose; and another where she and Ash move in together. Marceline later crawls into Finn's memories, where she sees him as little boy dancing in his underwear and singing about "fannies" and "buns." Marceline kicks Ash in the groin and repeatedly in the head. Finn chimes in, jumping up and down on his chest before a Monty Python-style foot comes down to squish the offending boyfriend.
Ice King tries to seduce a pair of breakfast princesses with honey. Finn grounds him for a month, whereupon Ice King, very angry, wishes he could hit Finn and Jake. Since he can't, he goes online and hires a "hit man." When he learns that the spectral, mummy-like assassin plans to kill them instead of just hitting them, the Ice King tries to save them, and finally does so by freezing them.
Ice King has posters of muscular, bikini-clad women in his workout room, and he tries to offer the hit man a pair of night vision, X-ray goggles for "when you have a lady houseguest." We see the naked rear of an animated goblin and hear characters make fun of Ice King's "bubble butt." A reference is made to being burned alive. Jake expresses regret at eating meat that came from Meat Man. Characters say "freaking," "dang," "gol" and a euphemism for testicles.
Over exaggerated much?