Another easy one.
(Also credited to Loudon Wainwright III.)

E 
People will know when they see this show 
          A          B       E 
The kind of a guy I am 
E 
They’ll recognize just what I stand for 
        A                         B7 
And what I just can’t stand 
  A                                 B 
They’ll perceive what I believe in 
          A                    B 
And what I know is true 
              E 
They’ll recognize I’m a one man guy 
              A                          B7 
Always was through and through 

E,A,E 

E 
People meditate hey that’s just great 
A                          B         E 
Trying to find the inner you 
E                               
People depend on family and friends 
                   A                          B7 
And other folks to pull them through 
A                                    B 
I don’t know why I’m a one man guy 
        A                               B 
And why I am a one man show 
         E                        A 
But these three cubic feet of bone and blood and meat 
                               B7 
Are all I love and know 
              
                      E                            A 
‘Cause I’m a one man guy in the morning 
E                    A 
Same in the afternoon 
E                                  A 
One many guy when the sun goes down 

E                                A 
I whistle me a one man tune 
E                         A 
One man guy, a one many guy 
E                              A 
Only kind of guy to be 
         F#m 
I’m a one many guy, I’m a one man guy 
         B7 
I’m a one man guy is me 

E, A, E, 
                   E 
I’m gonna bathe and shave and dress myself 
               A   B            E 
And eat solo everynight 
E       
Unplug the phone, sleep alone 
          A               B7 
Stay way out of sight 
A                       B 
Sure it’s kinda lonely 
A                       B7 
Yeah it’s kinda sick 
     E 
Of being your own one and only 
        A                B7 
Is a dirty selfish trick 

[Repeat Chorus]