Sometimes necessary if there's no time to have a proper shower.
Involves standing in the bath with a flannel/sponge, running it under the tap or dipping it in a bowl, and having a quick sponge bath.
Person1: Oh crap I have no time to have a shower :(
Person2: Have a tramp shower then :L
Person1: Good plan!
When there's no time to shower, or it's unavailable, just over-spray with deodrant.
"There's no time for a shower mate!!, just have a tramp shower!"