tomtit noun. 
['tɒmtɪt] E18.[from TOM noun1 + TIT noun4.]1.  Any of several small British birds, esp. tits; 
spec. the blue tit, 
Parus caeruleus. Also, any of various similar birds elsewhere; 
esp. (a) N. Amer. a chickadee, 
P. atricapillus; 
(b) Austral. a thornbill, 
Acanthiza chrysorrhoa (family Acanthizidae); 
(c) NZ a small black and white flycatcher, 
Petroica macrocephala (family Eopsaltridae). 
E18.b. transf. A little man or boy. 
rare. 
M18.2.  A small sailing boat. 
M19.3.  = 
SHIT noun. 
rhyming slang. 
M20.  [TahlilGaran] English Dictionary ▲