Top Definition
A misspelling of really. Often done on accident by idiots, it may be used on purpose in mockery or sarcasm.
Guy1: Hey, my name is Guy1 or other similarly obvious statement
Guy2: OH RILLY??
by flatulent fred October 11, 2004
1 more definition
instead of saying really people put rilly
as in rilly gay
lolz0rz taht waz rilly funi haha
w0w taht joek waz amayzingz
by streetisbest July 29, 2003

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