open blender default file and Alt+F11 (or space, and type fullscreen).
Sometimes I have to press it twice (toggle and back).

The backtrace:

Thread 1, Queue : com.apple.main-thread
#0 0x00007fff96682f5e in objc_release ()
#1 0x00007fff96682230 in (anonymous namespace)::AutoreleasePoolPage::pop(void*) ()
#2 0x00007fff8be7e342 in _CFAutoreleasePoolPop ()
#3 0x00007fff9552b4fa in -[NSAutoreleasePool drain] ()
#4 0x0000000100d1e14f in GHOST_WindowCocoa::setState at /Users/dfelinto/blender/bf/intern/ghost/intern/GHOST_WindowCocoa.mm:1010
#5 0x0000000100d01caa in GHOST_SetWindowState ()
#6 0x00000001000ff592 in wm_window_fullscreen_toggle_exec ()
#7 0x00000001000e5c73 in wm_operator_invoke ()
#8 0x00000001000df2ff in wm_operator_call_internal ()
#9 0x00000001000dfd03 in WM_operator_name_call ()
#10 0x00000001004504da in operator_call_cb ()
#11 0x0000000100412f04 in ui_apply_but_funcs_after ()
#12 0x0000000100412c29 in ui_handler_popup ()
#13 0x00000001000e4d3b in wm_handler_ui_call ()
#14 0x00000001000e4091 in wm_handlers_do_intern ()
#15 0x00000001000e0f35 in wm_handlers_do ()
#16 0x00000001000e0810 in wm_event_do_handlers ()
#17 0x00000001000d749e in WM_main ()
#18 0x00000001000d3343 in main at /Users/dfelinto/blender/bf/source/creator/creator.c:1582



Tested on two different Mac Book Pros, one with NVidia and the other with ATI.
Blender trunk ( >2.65)

Note, I can only reproduce it in release mode with cmake+make, or debug with xcode. debug +cmake + make doesn't have this problem