1. offside - Noun
2. offside - Adjective
3. offside - Adverb
(sport) the mistake of occupying an illegal position on the playing field (in football, soccer, ice hockey, field hockey, etc.)
illegally beyond a prescribed line or area or ahead of the ball or puck
illegally in advance of the ball or puck
Source: WordNetPippo Inzaghi was born in an offside position. Alex Ferguson
Jimmy Waite thinks this is offside. WRONG Jimmy! 1-0! Don Cherry
Discipline is knowing what you're supposed to do and doing it as best you can... On third down and short yardage, the Raiders don't jump offside. That's discipline - not a coat and tie, not a clean shave. John Madden
the touchdown was nullified because the left tackle was offside Source: Internet
After Canada was penalized for offside, O’Shea broke a tackle and dove over for a try by the posts. Source: Internet
A linesman flags for offside at the Den. Source: Internet