Use 'shove up' when describing a forceful physical push, not a gentle one.

Physical Action

'Shove up' suggests that some effort is required to move the object.

Effort Needed

'Shove up' is used for upward movement, not in other directions.

It's a colloquial term, more suitable for informal speech than formal writing.

When asking someone to 'shove up', tone and context are key to not sound rude.

Used when people need to make more space for others in a limited area.