Hugging a buddy..... no sexual meaning intended. You can also 'hand bug' aka hand-bugging which indicates holding of the hands between two friends/past lovers. This can be male/male or female/male or female/ female.
Julie and Tanner were Bugging on Friday night at the club and again the 1st time they saw each other after 6 months. But until the 6 month mark, Julie was hand-bugging Claire.