Grab a beer with some friends, say

• See some friends at the bar, say
• With "with," encounter
• Get together as a group: 2 wds
• Group gathering
• Grab coffee, perhaps
• Rendezvous (with)
• Gathering of people with a shared interest
• Social gathering
• Connect (with)

Wikipedia Word definitions in Wikipedia
Meetup is an online social networking portal that facilitates offline group meetings in various localities around the world. Meetup allows members to find and join groups unified by a common interest, such as politics , books , games , movies , health , ...