Snorlock

Snorlock is a large slug (who thinks he's a snail) who appears in "Slow Love". He pushes his way into Finn and Jake's Tree Fort hoping for their assistance to find a mate, but accidentally takes part of their home as his "shell". Finn and Jake help by teaching him how to talk to lady snails and how to beatbox and swing swords around. He then attracts a group of giant Snail Ladies with his beatboxing and sword-swinging, but their dancing gets out of control. When Jake throws a grain of salt on him, he appears to have a burn or blister on his face that doesn't seem to bother him much. Snorlock finally realizes he is a slug and finds love with a Slug Lady.

Personality
He seems to be very innocent and kind of acts like a little kid. He gets very nervous around ladies and usually panics or creeps them out.

Sad Juice
Sad Juice is the green juice Snorlock produces when he's sad. He may be able to produce it when he's not sad, because at the end of the episode, he excreted sad juice all over Beemo even though he wasn't sad.

Trivia

 * Snorlock says "that wasn't mad juice, that was sad juice." Possibly stating he has a "juice" for every emotion.
 * Snorlock's name maybe be a reference to the Pokemon Snorlax. Both are big and were in conflict with the hero's journey/ possessions.