roll up on (someone or something)

1. informal To arrive at some place or thing, especially in a wheeled vehicle. Primarily heard in US. Tom rolled up on campus for the first day of college in a brand new Mercedes. We rolled up on the site around dawn to see if it would be a good fit for our festival.

2. informal To approach someone or something in a stealthy or secretive manner, especially with the intention of causing harm or intimidation. Primarily heard in US. The police like to roll up on us about once a month just to put some fear into us. Gunmen rolled up on the rival gang leader's home, looking to put him down for good.