The phrase "be hog heaven" means to be extremely happy and satisfied with one's current situation. It can be used to describe a feeling of contentment and fulfillment in certain activities or situations. There are various synonyms for this phrase, such as "be in seventh heaven," "be on cloud nine," "be in paradise," "be over the moon," "be in ecstasies," "be on top of the world," and "be in a state of bliss." All of these phrases convey a sense of joy and elation that comes with being completely happy and content with one's current state.