Well, there are ALOT of funny episodes. I know of one where Kagome and Sango get drunk cause of these fumes in the air and Sango almost tries to kiss InuYasha but Kagome sits him before Sango can do anything. Other funny ones are Enter Shippou, Plus the Amazing Thunder Brothers; The Mystery of the New Moon and the Black Haired Inu Yasha (some parts are funny but its cool how they show his human emotions); Mystical Hand of the Amorous Monk, Miroku;Jinenji, Kind Yet Sad; Kagome is Kidnapped by Kouga the Wolf Demon; The Man that Fell in Love With Kagome; Two Hearts, One Mind; Tetsusaiga Breaks (a kinda serious episode, shows when InuYasha turn Demon for the first time); Joromaru and Kageromaru (ending is pretty funny ^_~); Return to the Place Where We First Met (kawaii episode); The Stone Flower and Shippo's First Love; Fairwell, Days of My Youth (I ALMOST DIED LAUGHING AT THIS EPISODE!!!!); Shippo Recieves an Angry Challenge; Toutousai's Rigid Training (ALSO ALMOST DIED LAUGHING); Shiori's Family and Inuyasha's Feelings (ive read about this one, sounds very awesome, its going to air on [adult swim] todnight); Jaken's Tetsusaiga Snatching Operation; The Monkey God's Three Spirits; The First Time I Saw Inuyasha Cry (he crys in this one!! you should know WHO hes crying for, and plz dont think its for Kikyou). NOTE: I haven't seen all of these episodes that I've listed, and I know there are alot more awesome episodes (i personally consider ALL InuYasha episodes to be awesome). Hope this helped.
~*InuYasha: Half Demon, Half Human, All Action!*~
InuYasha: "I don't give a rats ass!..."
Kagome: Hes cute alright... ::pulls on InuYasha's ear::...If your into dogs.