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1.
Noun.
Spidar is like spider but with an 'A' in it. Developed in the late '90s to annoy Dave Cook this spelling has since spawned an institution.

See also Spidraulic Fluid
Spidar daught cawm sends werd to yo mother
by Doctor December 05, 2004
 
2.
Affinity's other alias.
Affinity is also known as Spidar
by Affinity December 12, 2003