The phrase "hast all oneself" means to keep something to oneself or to possess something exclusively. Synonyms for this phrase include hoard, keep to oneself, sequester, and monopolize. These words suggest a possessive and guarded stance towards one's possessions or knowledge. Other synonyms for "hast all oneself" include withhold, retain, reserve, and hold back, all of which suggest a refusal to share or give away something. The phrase can also be synonymous with words such as private, personal, or exclusive, indicating something that is kept within one's own sphere and not for public consumption.