1. to leave suddenly.

When it was time for him to show up for his army service, he bugged out for one of the islands.

2. to become upset and excited.

I said I would do it, and then I started thinking and I was kind of bugging out about the whole thing.

• follow up with someone
• follow up with something
• follow your nose
• follow you to the ends of the earth
• food for thought
• fool and his money are soon parted.
• fool around
• fool around with
• fool around with someone
• fool around with something
• fool's errand
• Fools rush in.
• Fools rush in where angels fear to tread.
• fool with
• fool with someone
• fool with something
• foot the bill
• for a change
• for a kick-off
• for all
• for all cares
• for all intents and purposes
• for all knows
• for all someone cares
• for all someone knows