What does "gel up" mean?

What does "gel up" mean? Gel up has different meanings depending on context. In hair care, gel up means to apply gel to hair to style and hold in place, as in gel up your hair for sleek look. In figurative sense, gel up means to come together, bond, and solidify as group or team, similar to gel meaning to bond, with up adding emphasis of completion, as in team needs to gel up meaning become cohesive and work well together. In drug slang, gel up may refer to preparing gel capsules. In relationship slang, gel up could mean relationship becoming more solid and committed, bonding more closely. In general, gel up as phrasal verb can mean to become firm or solid, like plan gelling up meaning taking shape. So gel up means either applying gel to hair for styling, or figuratively coming together, bonding, and becoming solid and cohesive as group, team, or relationship, indicating process of strengthening and solidifying.