Liptard is a term used to describe someone within the paleontological or biological communities who believes and or draws members of a certain extinct animal group with extraoral tissue (lips) when it is argued that these groups likely did not have them. Proponents of extraoral tissue in a select animal groupmay argue that such a term is derogatory and view the term as an ad hominem fallacy, but this can depend on the person and the context. The term liptard shares similarities with the term feather nazi, both of which are terms used in the paleontological community. Like feathernazi, it is a play on words with Liptard being a play on the word "Libtard" a slang used against people with left leaning positions. Liperal (a term which I cannot take credit for), is used in similar way to liptard.
AK 1: Just look at Dr. Wittons newrestoration AK2: He is such a liptard
The word itself is a combination of the words lipnode tar and dead. The best we can figure out is that it means the lipnode on the tar is now dead.
Person: Hey you know that lipnode on the tar?
Other Dude: Yeah. You mean liptar tho.
Person: Whatever. It's dead now.
Other Dude: Oh. Welp, let's add a D for dead. It's now a liptard.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.