Entry for http://codegolf.stackexchange.com/questions/15372/write-a-program-in-disguise.

test.c

#include <stdio.h>  
#define def int 	 	 
#define beer main(int i){char b[1024];	    	
#define print(v) print(int v){		  	  
#define end ;} 		 		  
#define if(x) fputs(b,stdout); fgets(b,1024,f); if(x){			  	 
#define else ;} else{		 				
#define puts  	 	 			
#define print  	     
#define open(fn) FILE *f = fopen(fn,"r");	 		  
#define while(x) fgets(b,1024,f); while(!feof(f)){		 				
   		 		  
   		 		  
def beer  		  	 	
   	# define beer	   

    open("test.c")
	
   i=100;
 
 
    while ( i >= 0 )
        if ( i > 0 )
            print "#{i} bottle#{i==1&&''||'s'} of beer on the wall, "
            puts  "#{i} bottle#{i==1&&''||'s'} of beer."
            print "Take one down and pass it around, "
            puts  "#{i-1} bottle#{i==2&&''||'s'} of beer on the wall."
            puts
        else
            puts "No more bottles of beer on the wall, no more bottles of beer."
            puts "Go to the store and buy some more, 99 bottles of beer on the wall."
        end
        i -= 1
    end

    return 0      
end
	 	
beer