look up any word, like muddin:
 
1.
To really bugger something up/for something to go wrong/to make a bodge job of a simple task
"my car's being a dalman and i can't get to work"

or

"i'm not ignoring you, facebook chat is being a dalman"
by westicles69 February 04, 2010
 
2.
a musical act that acts as a sideshow to the main event/act, thereby detracting from the enjoyment of the event for all those watching
"i was listening to the top 40 the other day when this cheesy pop act came on acting as dalmen in what was otherwise a very good selection of music"
by westicles69 February 16, 2010