Instead of a world-class physicist,
I could've wound up as a HOBO...
The Big Bang Theory Season 6, Episode 22
and your best decision is to
ride the rails like a HOBO?
The Big Bang Theory Season 7, Episode 24
...and your best decision is
to ride the rails like a HOBO?
The Big Bang Theory Season 8, Episode 1
...but I recently adopted a HOBO lifestyle...
The Big Bang Theory Season 8, Episode 1
Oh, my God, you ran over a HOBO.
The Big Bang Theory Season 4, Episode 4