Definitions

1. adjective

extremely good or excellent; excellent or impressive in quality or style

“The skate park was totally tubular, with epic ramps and challenging courses.”

2. noun

a tube or tube-like structure, especially in the context of surfing or skateboarding

“The tubular wave at the beach was perfect for surfing.”

3. adverb

in a tubular or excellent manner

“He skated tubularly down the hill, performing awesome tricks along the way.”