A couple of nice additions to ZSH git plugin

git.plugin.zsh

*** /Users/viktorklang/.oh-my-zsh/plugins/git/git.plugin.zsh.old  Fri May 10 18:07:33 2013
--- /Users/viktorklang/.oh-my-zsh/plugins/git/git.plugin.zsh	Fri May 10 18:05:49 2013
*************** alias gcount='git shortlog -sn'
*** 14,19 ****
--- 14,21 ----
  alias gcp='git cherry-pick'
  alias glg='git log --stat --max-count=5'

+ alias grm='git branch -D'
+
  # Git and svn mix
  alias git-svn-dcommit-push='git svn dcommit && git push github master:svntrunk'

*************** function current_branch() {
*** 30,32 ****
--- 32,36 ----
  alias ggpull='git pull origin $(current_branch)'
  alias ggpush='git push origin $(current_branch)'
  alias ggpnp='git pull origin $(current_branch) && git push origin $(current_branch)'
+
+ alias ggrm='git push origin :$(current_branch)'

USE THIS AT YOUR OWN RISK! YMMV

Note that "ggrm" deletes the current branch from origin, just like ggpnp, ggpull and ggpush operates on current_branch

I usually use ggrm to remove a merged feature branch on origin before using grm locally to remove the branch.