Trying To Find Name of Late 80's/Early 90's HK Wuxia Comedy

It was a comedic wuxia movie, and all I remember was the main character told the (I think) bad guy, if you eat/drink whatever food/drink, it will cause your uh, appendage to shrivel and fall off, haha.  I still remember the tape lent to me had Full Contact (Chow Yun-Fat) movie right after, so it had to be probably early 90's.  Any help is greatly appreciated, thank you. 

Weird, nothing with that title comes up when I type it in hkmdb.  Do you have a link to the title?  Thank you, Barrett.