Look up BUMP and bump in Wiktionary, the free dictionary.

To bump a thread on an internet discussion forum is to post a reply in order to raise the thread's profile by returning it to the top of the list of active threads. This is also called thread necromancy or gravedigging. Wikipedia does not have an article with this exact name. ... Logo en:Wiktionary Wiktionary is a sister project to Wikipedia intended to be a free wiki dictionary (including thesaurus and lexicon) in every language. ... Look up Thread on Wiktionary, the free dictionary The word thread has many meanings: A thread is a kind of thin yarn, which is thin fibers spun together. ... Necromancy (Latin necromantia, Greek νεκρομαντία nekromantía) is the alleged divination by which a person raises the spirits of the dead or, in some cases, merely their corpses. ...

Typically, a thread may be bumped after it has received no replies in several days, or when other (and for the bumper less significant) threads have knocked it off the front page.

Thread bumping, which in its most open form is simply a post consisting of the word "bump", is commonly considered a breach of netiquette and some moderated forums forbid it. Users may get around that by posting what is ostensibly a genuine reply. Sometimes this will mockingly contain the word "bump" in it, such as *Is wandering the forum when he bumps into this thread*. It may also take the form of a trivial question or response such as "Anyone?", rather than using the word "bump" which makes clear their intention. Netiquette (neologism, a portmanteau formed from Internet etiquette) is a catch-all term for the conventions of politeness recognised on Usenet, in mailing lists, and other electronic forums such as internet message boards. ... The reply is a response by plaintiff to defedants answer. ...

BUMP is sometimes used as a backronym for "Bring Up My Post". A backronym or bacronym is a reversed acronym. ... Look up post in Wiktionary, the free dictionary. ...

It can also be interpreted as a recursive acronym meaning "Bump Up My Post" A recursive acronym is an acronym (or occasionally, a backronym) which refers to itself in the expression for which it stands, similar to a recursive abbreviation. ...