Hey there gonass, where abouts will you be staying in Toronto?
There's good nightlife on King street , Queen Street
theres always things going on.. im pretty sure theres some sort of music event going on all week. Check 'blogTO'. It has great reviews from eating to nightlife.
Go to "kensington market" fun little hippie part of toronto. good eating good vibes, connects very close to queen street where night life is.
zanzibar is the famous strip club if you want a lap dance.
Eatons center + dundas sqaure, theres usually things happening.
The uoft campus is a pretty sweet walk to do. over 100 years old, very cool buildings inside and out
Jays games, TFC games... Argos games..
All of lakeshore is recommended for tourists + distillery district - i recommend just going on the "steam whistle brew tour"