A pejorative nickname for someone whose front yard has a lot of clutter such as ceramic gnomes, giant metal winged fairies, bedraggled pinwheels and such.

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

people who are fans of pro-wrestling and they and other friends simulate the moves they see on either a trampoline or mattress.
the "tard" part is used because it is seen as a stupid act and it is illegal.

Backyard wrestlers who do not understand the concept of psychology in professional wrestling matches and instead resort to hitting each other with random objects such as light tubes, street signs, barbed wire, etc. and jumping off of high places onto each other.

A lowbrow practitioner of backyard wrestling who will often perform high risk maneuvers and use crude weaponry. 1998-2001 was considered the heyday of yardtards. Subsequently, there has been a growing movement of mixed martial artists style yardtards who often emulate matches from The Ultimate Fighting Championship as the show started to become broadcasted on cable tv following the reality show The Ultimate Fighter. Many backyarders who follow this trend like to brawl in their backyards or garages after buying heavy bag gloves from sporting goods stores. These backyarders are frequently called "TUF noobs" for they do not formally train martial arts at academies and have only become followers of mixed martial arts following the reality tv show. The highest extent of an mma yardtard's training usually is high school wrestling and practicing techniques sought online.

Derogitory term to describe a backyard wrestler.

(noun) Proper term for backyard wrestlers - or any other person who wrestles matches without proper training. Will often use jumping from high places and "hardcore" weapons to hide actual talent.