
All right, I'd kill a HOBO if it would
get me laid. Now, can we order?
The Big Bang Theory Season 3, Episode 13

Oh, my God, you ran over a HOBO.
The Big Bang Theory Season 4, Episode 4

...but I recently adopted a HOBO lifestyle...
The Big Bang Theory Season 8, Episode 1

...and your best decision is
to ride the rails like a HOBO?
The Big Bang Theory Season 8, Episode 1

and your best decision is to
ride the rails like a HOBO?
The Big Bang Theory Season 7, Episode 24