have a sixpenny bit up one's backside

== English == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.). === Verb === have a sixpenny bit up one's backside (third-person singular simple present has a sixpenny bit up one's backside, present participle having a sixpenny bit up one's backside, simple past and past participle had a sixpenny bit up one's backside) (slang, dated, Ireland) To be over the moon, to be very happy.