Bog off is a British slang that is used to tell someone to go away or leave. There are a number of synonyms for the phrase that include "bugger off," "get lost," "buzz off," "scram," "clear off," "beat it," "shove off," and "take a hike." These phrases are often used when you want to express impatience or annoyance with someone's presence, behavior or actions. Using these synonyms can be a bit more polite than simply telling someone to bog off, and they may also be more appropriate in certain situations. Whatever phrase you choose, the intention is clear: you want the person to leave you alone.